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




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.
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.
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




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 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.
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
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 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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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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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
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
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!




You should be able to simple have the tech disconnect the flaps without repercussions.
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.
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

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)
http://www.carscoops.com/2015/04/mer...to-see-if.html
http://www.carscoops.com/2015/04/mer...to-see-if.html
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.
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.
What a pile of ****

wasnt a patch on my M3.......... nowhere near
felt like a big wallowy underpowered tank.........




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)
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
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

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.........




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.........



