Car & Driver comparo
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From: Boston
'05 A4 1.8TQM6
Car & Driver comparo
Anyone read thew new comparo in C&D shootout between the Maserati Coupe, BMW 645Ci & CLK55 AMG?
It's a great read...places as follows:
3rd: Maserati Coupe
2nd: BMW 645Ci
1st: CLK55 AMG
It's a great read...places as follows:
3rd: Maserati Coupe
2nd: BMW 645Ci
1st: CLK55 AMG
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Thread Starter
MBWorld Fanatic!
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From: Boston
'05 A4 1.8TQM6
Originally posted by RJC
Where is the scan?
Where is the scan?
!!!!!I PROMISE i'll get it up tonight, PROMISE! If not, you can do something :p
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From: Tampa, Fl
CLK63 Black Series
Originally posted by GDawgC220
hehe, my bro stole my magazine from me !!!!!
I PROMISE i'll get it up tonight, PROMISE! If not, you can do something :p
hehe, my bro stole my magazine from me
!!!!!I PROMISE i'll get it up tonight, PROMISE! If not, you can do something :p
:p
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I just realized that the new CLK55 has 3.06's compared to the 2.82's in the 208CLK55.
I believe the tranny gearing is more agressive as well.
I knew it could not have been the 20 hps to get it to 13.1's.
Now I am jealous. That is the tranny/rear combo I want in my car.
I believe the tranny gearing is more agressive as well.
I knew it could not have been the 20 hps to get it to 13.1's.
Now I am jealous. That is the tranny/rear combo I want in my car.
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CLS55 AMG
Hmm...
...109 mph trap speed with 3740 pounds curb weight and 362 horsepower? Let me see....180 pounds for driver + test equip gives an as-tested weight of 3,920.
crank hp = (as-tested weight)*(trap speed/234)^3.
= 3920(109/234)^3
= 3920(0.101072)
= 396 crank hp.
In a car rated with 362. That's about 9% above rated...not huge, but it definitely accounts for the high trap speed; I'd expect a 107 mph trap speed with that power to weight.
How do the other two cars in the comparison stack up?
Maserati = 3780 pounds, trap speed = 109
=> 3960(109/234)^3 = 400 horsepower. Also a bit high, but within the +-5% of the equation's accuracy.
BMW = 3860 pounds, trap speed = 102.
=> 4040(102/234)^3 = 335 horsepower. Ditto. Ten up from stock...
crank hp = (as-tested weight)*(trap speed/234)^3.
= 3920(109/234)^3
= 3920(0.101072)
= 396 crank hp.
In a car rated with 362. That's about 9% above rated...not huge, but it definitely accounts for the high trap speed; I'd expect a 107 mph trap speed with that power to weight.
How do the other two cars in the comparison stack up?
Maserati = 3780 pounds, trap speed = 109
=> 3960(109/234)^3 = 400 horsepower. Also a bit high, but within the +-5% of the equation's accuracy.
BMW = 3860 pounds, trap speed = 102.
=> 4040(102/234)^3 = 335 horsepower. Ditto. Ten up from stock...
MBWorld Fanatic!
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CLS55 AMG
Tranny gears are same as 208. Rearend is lower, though....
...that will help the 0-60 time, not so much in the 1/4. The trap speed is indicative of higher-than-rated hp with this car...
Originally posted by sajecw
I just realized that the new CLK55 has 3.06's compared to the 2.82's in the 208CLK55.
I believe the tranny gearing is more agressive as well.
I knew it could not have been the 20 hps to get it to 13.1's.
Now I am jealous. That is the tranny/rear combo I want in my car.
I just realized that the new CLK55 has 3.06's compared to the 2.82's in the 208CLK55.
I believe the tranny gearing is more agressive as well.
I knew it could not have been the 20 hps to get it to 13.1's.
Now I am jealous. That is the tranny/rear combo I want in my car.
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Joined: Dec 2001
Posts: 222
Likes: 0
Re: Hmm...
Originally posted by Improviz
...109 mph trap speed with 3740 pounds curb weight and 362 horsepower? Let me see....180 pounds for driver + test equip gives an as-tested weight of 3,920.
crank hp = (as-tested weight)*(trap speed/234)^3.
= 3920(109/234)^3
= 3920(0.101072)
= 396 crank hp.
In a car rated with 362. That's about 9% above rated...not huge, but it definitely accounts for the high trap speed; I'd expect a 107 mph trap speed with that power to weight.
How do the other two cars in the comparison stack up?
Maserati = 3780 pounds, trap speed = 109
=> 3960(109/234)^3 = 400 horsepower. Also a bit high, but within the +-5% of the equation's accuracy.
BMW = 3860 pounds, trap speed = 102.
=> 4040(102/234)^3 = 335 horsepower. Ditto. Ten up from stock...
...109 mph trap speed with 3740 pounds curb weight and 362 horsepower? Let me see....180 pounds for driver + test equip gives an as-tested weight of 3,920.
crank hp = (as-tested weight)*(trap speed/234)^3.
= 3920(109/234)^3
= 3920(0.101072)
= 396 crank hp.
In a car rated with 362. That's about 9% above rated...not huge, but it definitely accounts for the high trap speed; I'd expect a 107 mph trap speed with that power to weight.
How do the other two cars in the comparison stack up?
Maserati = 3780 pounds, trap speed = 109
=> 3960(109/234)^3 = 400 horsepower. Also a bit high, but within the +-5% of the equation's accuracy.
BMW = 3860 pounds, trap speed = 102.
=> 4040(102/234)^3 = 335 horsepower. Ditto. Ten up from stock...
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CLS55 AMG
It used to be even worse....
...back in the 60's, Pontiac gave the mags a "production" GTO, with what was actually a full-race motor! Pretty notorious example....
BMW seems to have remarkable luck with their cars as well...the first E46 M3's tested were trapping at 107+, when they should have been trapping at no more than 105 or so...which is exactly what the more recent examples have been doing.
BMW seems to have remarkable luck with their cars as well...the first E46 M3's tested were trapping at 107+, when they should have been trapping at no more than 105 or so...which is exactly what the more recent examples have been doing.
Originally posted by sajecw
I have always heard that those cars are supplied by the manufacturers and are 'tuned' for the event.
I have always heard that those cars are supplied by the manufacturers and are 'tuned' for the event.
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I remember all of the magazines had the M3 about 3 to 5 tenths faster than the M3. It is not really the case at the track stock to stock.
It is pretty slick for the manufacturers to do that though.
Just a thought, I remember an article on the Lingenfelter Corvette, Hennessy Viper and a couple of other cars.
These cars were tested and only produced E.T.'s a second or less faster than the stock numbers posted.
Well, I saw one of these tests being done on the modified cars and the times were real. It just proved to me that the stock cars were not actually stock.
How many bone stock Z06's do you see breaking into the low 12's?
It is all a marketing ploy and they all should be called out on it.
The only cars in recent memory living up to the hype are the 211 E55, the Porsche TT and the new Viper.
It is pretty slick for the manufacturers to do that though.
Just a thought, I remember an article on the Lingenfelter Corvette, Hennessy Viper and a couple of other cars.
These cars were tested and only produced E.T.'s a second or less faster than the stock numbers posted.
Well, I saw one of these tests being done on the modified cars and the times were real. It just proved to me that the stock cars were not actually stock.
How many bone stock Z06's do you see breaking into the low 12's?
It is all a marketing ploy and they all should be called out on it.
The only cars in recent memory living up to the hype are the 211 E55, the Porsche TT and the new Viper.
