Car and Driver: C63 AMG v '07 Audi RS 4 v '08 BMW M3
http://www.caranddriver.com/shortroa...cabriolet.html
Do you walk to school or carry your lunch?
The poster to whom you replied simply stated, accurately, that the difference in weight between the 335i coupe and sedan is miniscule, the implication being that the weights of the M3 sedan and M3 coupe will most likely be quite close.
And from published figures, he's right. Edmunds gives the new M3 sedan's weight as 3538 pounds, which is actually a bit less than the M3 coupe Car & Driver tested.
However, I've seen other sources listing its weight a bit higher than the sedan's, from 20-30kg, still not enough to handicap it much compared to the coupe!
But in any case, KiwiRobbie was right: the weight of the M3 sedan and the M3 coupe are virtually identical.
Last edited by Improviz; Nov 20, 2007 at 12:35 AM.

Dollar for dollar I'd go with the C63. For $65k-70k enjoyment should be effortless.
The Best of Mercedes & AMG


M3 70-0: 156 ft
C63 70-0: 155 ft
This is particularly impressive when you consider the weight difference, and that the M3 has larger tires, front and rear. And the M3 only got 0.03 g more on the skidpad, 0.91 to 0.88.
Put equal-sized tires on the C63 and it's a whole new ballgame.
I just hope this weight for the C63 was a fluke; it would seem to be given that the car's published weight figures are far lower.
For one, they said the RS4 was too pricey. Funny that they think everyones a complete idiot that reads their magazine. The RS4 they tested was the Euro model with the optional carbon brakes which sent the sticker way above the competitors. So that argument is invalid due to the fact it was a maxed out Euro model with non US optional equipment.
The M3. When I think of M3 and BMW I would expect everything I use to drive the vehicle would be perfect in feel and execution. The steering, the seats, the shift lever, the pedals. Well according to Car and Drive nearly all components mentioned above fail in their duty to provide that magical perfect execution. Why bother with a great chassis and drivetrain if the components that directly control them are inferior compared to the rest of the vehicle.
Conclusion. The only real fault the C63 suffers from so far is a stiff ride, that seems common among all tests. Its a damn SPORTS sedan... come on testers, this isn't a buick. Also Benz and AMG take the correct route when developing a high output V8. Audi and BMW both make great V8's for their new hotrods but they refined them too much, leave the astronimical redlines for the exotics and small displacement engines, who really wants to wind out a V8 to get all the use out of it unless it shreeks like a Ferrari. Also the torque figures are nearly comical for the weight of these cars. 300ftlb is good, but not in todays playing field where the cars weight 3500+lbs and its competitor the c63 is making nearly 100+ more pounds of torque at nearly any rpm. If I'm buying a V8 in todays sports car world I want big torque rather than a useless 8000+rpm redline. I want that instant push from any rpm rather than trying to find that sweet spot.
Car and Driver

For one, they said the RS4 was too pricey. Funny that they think everyones a complete idiot that reads their magazine. The RS4 they tested was the Euro model with the optional carbon brakes which sent the sticker way above the competitors. So that argument is invalid due to the fact it was a maxed out Euro model with non US optional equipment.
The M3. When I think of M3 and BMW I would expect everything I use to drive the vehicle would be perfect in feel and execution. The steering, the seats, the shift lever, the pedals. Well according to Car and Drive nearly all components mentioned above fail in their duty to provide that magical perfect execution. Why bother with a great chassis and drivetrain if the components that directly control them are inferior compared to the rest of the vehicle.
Conclusion. The only real fault the C63 suffers from so far is a stiff ride, that seems common among all tests. Its a damn SPORTS sedan... come on testers, this isn't a buick. Also Benz and AMG take the correct route when developing a high output V8. Audi and BMW both make great V8's for their new hotrods but they refined them too much, leave the astronimical redlines for the exotics and small displacement engines, who really wants to wind out a V8 to get all the use out of it unless it shreeks like a Ferrari. Also the torque figures are nearly comical for the weight of these cars. 300ftlb is good, but not in todays playing field where the cars weight 3500+lbs and its competitor the c63 is making nearly 100+ more pounds of torque at nearly any rpm. If I'm buying a V8 in todays sports car world I want big torque rather than a useless 8000+rpm redline. I want that instant push from any rpm rather than trying to find that sweet spot.
Car and Driver

The M3 is not a semi race car, it hasn't been one of those since the E30 M3 which was designed and built for racing, just like the C63's great grandad the 190e 2.3 16v.
Main thing is weight. Adding more rotational mass via heavier wheels/tires can have a very negative effect upon acceleration, as anyone who's switched from 17's to 20's can attest.









