SL-Class (R231) 2013 on: Discussion on the SL550

SL/R231: Differences between 2017 SL450/550???

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Old Oct 15, 2016 | 09:21 PM
  #1  
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Differences between 2017 SL450/550???

Over the years, there have been so many cars that were marketed in a way that pretty much MADE you go for the bigger engine, since they only allowed the best options on the top model. It would appear, that in the case of the current SL450 and SL550, that is not the case. You can load a 450 up with Designo interiors, ABC, AMG wheels, etc, to the point where I need to ask, is the difference in the 450 and 550 ONLY the engine? Are the brakes the same? The suspension the same? Does anyone know for sure?
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Old Oct 16, 2016 | 12:31 AM
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We have the SL550 and have driven the SL450 for a couple thousand miles in Europe recently (same model year), so I can tell you that the car is more or less the same.
Besides the engine the only other difference is the exhaust sound tuning. The SL550 is much quieter while the SL450 sounds more sporty. Quite a bit slower though...

The SL450 with a lighter engine feels a touch more balanced (less front heavy) but I missed power of the larger engine, especially on the Autobahn in Germany.

The SL450 exhaust noise was annoying from time to time due to being so loud.

Naturally some SL550 base options are add-on options for the SL450.
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Old Oct 16, 2016 | 04:48 AM
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Originally Posted by Wolfman
We have the SL550 and have driven the SL450 for a couple thousand miles in Europe recently (same model year), so I can tell you that the car is more or less the same.
Besides the engine the only other difference is the exhaust sound tuning. The SL550 is much quieter while the SL450 sounds more sporty. Quite a bit slower though...

The SL450 with a lighter engine feels a touch more balanced (less front heavy) but I missed power of the larger engine, especially on the Autobahn in Germany.

The SL450 exhaust noise was annoying from time to time due to being so loud.

Naturally some SL550 base options are add-on options for the SL450.
i havent driven a 550
but i have a 450hp V8 M3........... and to be fair its a tad quicker

but i would probably use that bit extra performance 1% of the time
which doesnt justify the extra cost, and the roads are too busy to use it most of the time........

the UK cars are fine on exhaust(not too loud) - depends on the mode........... comfort/Eco is nice and quiet........... Sports+ is loud.......... but when you're in the mood for Sports, the extra noise compliments it
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Old Oct 16, 2016 | 11:29 AM
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Originally Posted by ibanezking
i havent driven a 550
but i have a 450hp V8 M3........... and to be fair its a tad quicker

but i would probably use that bit extra performance 1% of the time
which doesnt justify the extra cost, and the roads are too busy to use it most of the time........

the UK cars are fine on exhaust(not too loud) - depends on the mode........... comfort/Eco is nice and quiet........... Sports+ is loud.......... but when you're in the mood for Sports, the extra noise compliments it
I think the difference is best explained in torque. The pull of a high-torque engine is just fun at any speed. The 550 has nearly twice the torque of the M3, so it is a very different driving experience.

I have really only driven the SL450 is Sport+ as the car is simply too slow in acceleration. It is perceived of course as the car is still quite quick but the Comfort mode starts the car in 2nd gear and coupled with a shift pattern geared for comfort, it is simply too relaxed for me.
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Old Oct 16, 2016 | 11:47 AM
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What do we think the possibility is of changing the resonators to quiet the 450's bark a bit? Might modifying the exhaust system cause problems with the turbochargers?
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Old Oct 16, 2016 | 12:20 PM
  #6  
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Originally Posted by Streamliner
What do we think the possibility is of changing the resonators to quiet the 450's bark a bit? Might modifying the exhaust system cause problems with the turbochargers?
i really dont think you would need to...............

Wolfie is painting the wrong picture of it in my opinion

if you want to pootle about its super quiet............ and if you want to get moving, you can do in Comfort mode and use the paddles............
if you want aggressive......... put it in Sports or Sports+ and go for it
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Old Oct 16, 2016 | 12:22 PM
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Originally Posted by Wolfman
I think the difference is best explained in torque. The pull of a high-torque engine is just fun at any speed. The 550 has nearly twice the torque of the M3, so it is a very different driving experience.

I have really only driven the SL450 is Sport+ as the car is simply too slow in acceleration. It is perceived of course as the car is still quite quick but the Comfort mode starts the car in 2nd gear and coupled with a shift pattern geared for comfort, it is simply too relaxed for me.
you hit the nail on the head there with "for me"

you make it sound like you do a 4.0 second to 60 every set of lights and regularly need punchy acceleration from 120 upwards

i think 99% of drivers would be perfectly happy with the 400/450 for 99% of the time...........
the other 1% can spend some more and buy a 550
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Old Oct 16, 2016 | 01:20 PM
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Originally Posted by ibanezking

i think 99% of drivers would be perfectly happy with the 400/450 for 99% of the time...........
the other 1% can spend some more and buy a 550

Good comparison of the two models by Wolfman since he has extensively driven both. I think that more than 1% of the SL buyers want the V8. Higher torque just makes the overall driving experience more fun--not that you have to wring it out all of the time. Is it worth the extra money? That is definitely a personal decision.
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Old Oct 16, 2016 | 04:05 PM
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Originally Posted by ibanezking
you hit the nail on the head there with "for me"

you make it sound like you do a 4.0 second to 60 every set of lights and regularly need punchy acceleration from 120 upwards

i think 99% of drivers would be perfectly happy with the 400/450 for 99% of the time...........
the other 1% can spend some more and buy a 550
You may have read that I hold the Sl450 in very high regards and consider a better bang for the buck, so I am not trying to diss the model.

But if you haven't driven the 550 it makes the comparison for you a bit more challenging.
Torque is fun even if you don't punch it to triple digits or lay rubber on every stoplight. The power of the engine just makes everything you do very effortless and more enjoyable.
This is why you have a choice. Take the car that suits you best.

Btw. In the US more than 60% are 550's
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Old Oct 16, 2016 | 04:11 PM
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Originally Posted by HouTexMB
Good comparison of the two models by Wolfman since he has extensively driven both. I think that more than 1% of the SL buyers want the V8. Higher torque just makes the overall driving experience more fun--not that you have to wring it out all of the time. Is it worth the extra money? That is definitely a personal decision.
All of this stuff is, indeed, personal preference. All of my previous SL's have been V8's, so I was SURE that I wanted the 550. But, I drove both back to back and I actually liked the 450 better. The only thing I ldid not like better about the 450, was the exhaust note. And, as Wolfman said, the 450 is a bargain, since virtually everything else is the same on both cars. There is absolutely nothing else in the marketplace that offers this much luxury, safety, and performance for anything even remotely close to the 450 price.

I have my dealer searching for a booked order that can still be switched to Mars Red. If he can do it, I'm jumping on it, with Designo Titanium Pearl Gray interior! Wish me luck!
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Old Oct 16, 2016 | 04:12 PM
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Originally Posted by Streamliner
What do we think the possibility is of changing the resonators to quiet the 450's bark a bit? Might modifying the exhaust system cause problems with the turbochargers?
The different exhaust note comes from flaps in the exhaust. AFAIK the have no other function purpose than to make it louder.

You should be able to simple have the tech disconnect the flaps without repercussions.
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Old Oct 16, 2016 | 08:04 PM
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Originally Posted by Streamliner

I have my dealer searching for a booked order that can still be switched to Mars Red. If he can do it, I'm jumping on it, with Designo Titanium Pearl Gray interior! Wish me luck!

I love Mars Red--we've had 2 CLK's and an E550 coupe in that color, all 3 with a light gray interior. It's just a classic MB non-metallic color.
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Old Oct 16, 2016 | 08:51 PM
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Originally Posted by HouTexMB
I love Mars Red--we've had 2 CLK's and an E550 coupe in that color, all 3 with a light gray interior. It's just a classic MB non-metallic color.
Well, at least in the case of th SL, it WAS a classic MB non-metallic color, because as of a few weeks ago, it is no longer available.
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Old Oct 17, 2016 | 06:23 AM
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Originally Posted by Wolfman
You may have read that I hold the Sl450 in very high regards and consider a better bang for the buck, so I am not trying to diss the model.

But if you haven't driven the 550 it makes the comparison for you a bit more challenging.
Torque is fun even if you don't punch it to triple digits or lay rubber on every stoplight. The power of the engine just makes everything you do very effortless and more enjoyable.
This is why you have a choice. Take the car that suits you best.

Btw. In the US more than 60% are 550's
sure i appreciate the torque thing............ my cars were all bigger diesels before we got the M3 5.5yrs ago..........
the last was the 335d - which is about 600ft/lbs........ and it IS a different way of driving

i would suspect the % to be WAY lower in the UK..........

in the SLK division........ they are virtually all the 250d(2.2 diesel)
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Old Oct 17, 2016 | 11:34 AM
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i found this quite an interesting article with direct comparison stats to its competitors............

http://www.carscoops.com/2015/04/mer...to-see-if.html
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Old Oct 17, 2016 | 03:04 PM
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Originally Posted by ibanezking
i found this quite an interesting article with direct comparison stats to its competitors............

http://www.carscoops.com/2015/04/mer...to-see-if.html
Don't read the comments at the bottom
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Old Oct 17, 2016 | 03:14 PM
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Originally Posted by gkgeiger
Don't read the comments at the bottom
Couple of things:

First, this is a review of a 2015 car, not the updated model. Second, the comments are most likely from clowns who cannot afford an SL and don't have any clue as to what luxury, design and engineering are all about. The same kind of guys who write into magazines, screaming about the magazine picking a Porsche over a Mustang, even though the Mustang was .001 second faster.

Last edited by Streamliner; Oct 17, 2016 at 11:46 PM.
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Old Oct 17, 2016 | 03:35 PM
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Originally Posted by Streamliner
Couple of things:

First, this is a review of a 2015 car, not be updated model. Second, the comments are most likely from clowns who cannot afford an SL and don't have any clue as to what luxury, design and engineering are all about. The same kind of guys who write into magazines, screaming about the magazine picking a Porsche over a Mustang, even though the Mustang was .001 second faster.
yep, but the 2015 model 333hp car comes out well against its competitors........ and hence the thinking is that the newer 2016/7 model with 367hp......... will hence be even better in comparison???
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Old Oct 17, 2016 | 03:38 PM
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and............... for what its worth, i did go and have a test drive of the new 2016 Mustang(5 litre V8)......... which is now available as a genuine UK model with right hand drive for us Brits..............

What a pile of ****

wasnt a patch on my M3.......... nowhere near
felt like a big wallowy underpowered tank.........
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Old Oct 17, 2016 | 10:03 PM
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Originally Posted by ibanezking
sure i appreciate the torque thing............ my cars were all bigger diesels before we got the M3 5.5yrs ago..........
the last was the 335d - which is about 600ft/lbs........ and it IS a different way of driving

i would suspect the % to be WAY lower in the UK..........

in the SLK division........ they are virtually all the 250d(2.2 diesel)
Keep in mind that car sales are quite different in the US than in the UK or Europe for that matter. Big models have typically larger engines here. Gas is cheap and not a major consideration.
Highly regarded in Europe, few would buy a Diesel in the US and even less are available; even before the VW scandal.

Model & engine choices of Mercedes are more limited in the US and bundled with more options. European models are typically more bare bone with many options added a la carte (many of which are already included in the base or not available in the US).

The SL stands out somewhat as the engine versions are the same everywhere now, but other models are very different. For example, the "smallest" S-Class here is the long wheelbase S550.

Btw. the torque on the 335D is 425 ft/lbs
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Old Oct 18, 2016 | 05:42 AM
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Originally Posted by Wolfman
Keep in mind that car sales are quite different in the US than in the UK or Europe for that matter. Big models have typically larger engines here. Gas is cheap and not a major consideration.
Highly regarded in Europe, few would buy a Diesel in the US and even less are available; even before the VW scandal.

Model & engine choices of Mercedes are more limited in the US and bundled with more options. European models are typically more bare bone with many options added a la carte (many of which are already included in the base or not available in the US).

The SL stands out somewhat as the engine versions are the same everywhere now, but other models are very different. For example, the "smallest" S-Class here is the long wheelbase S550.

Btw. the torque on the 335D is 425 ft/lbs
yes, gas is expensive here so most buy diesels..........

i've just refreshed my memory on the tuners website(it was 6 years ago!!) and i had mine tuned
it was running about 350hp and 550 ft/lb

it had been done by the previous owner
i took it back to the dealers when i bought it as i complained that the trection light kept coming on when the roads were a bit damp.........
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Old Oct 18, 2016 | 12:20 PM
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Originally Posted by ibanezking
yes, gas is expensive here so most buy diesels..........

i've just refreshed my memory on the tuners website(it was 6 years ago!!) and i had mine tuned
it was running about 350hp and 550 ft/lb

it had been done by the previous owner
i took it back to the dealers when i bought it as i complained that the trection light kept coming on when the roads were a bit damp.........
Diesels are great engines to be sure. I remember renting an Audi A8 Diesel (4L) in Germany a couple of years ago and was going very fast all the time. Great power, torque and I was going about 700 miles on a tank full.
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