JohnnyUte

The coupe is about 100 lbs lighter, give or take. That being said, I'd love to see if someone dynos their car and what the power output would be. Mercedes claims that the 4matic doesn't add anything to the weight or hurt the 0-60 times, but I'd be curious to see what the reality of the situation is.

Igor1080

The 335i beats all of those in performance. I drove my friends e92 coupe with the N55 and a JB3 chip, the car is stupid fast for a 6 cylinder. I also just went on a test drive for the new F30 body and it is slower than the coupe I drove as well. Basically the S5 is too heavy to really be all that fast. Auto to Auto trans. the 335i will kill all of these coupes in a head to head.

Oh and as far as gas mileage the 335 is also pretty much the best of the bunch. Coming from an Infiniti I know that it eats gas like crazy. The S5 is a V8 so thats obviously crap on gas. The C350 is probably on par with BMW if not a little less MPG's.

jctevere

The S5 is clearly the performance king here for 2013 models (as long as you are willing to accept that it is supposed to compete with the 335i and C350, G37... Instead the 2013 A5 3.0TFSI is most likely the natural competitor, but still is the worst performance-wise). . With the S5 rated at 4.9 seconds 0-60, with the 335i in a tie with the G37 Coupe coming in second at 5.5 seconds for the autos, and the C350 with 5.9 seconds. The 335i is not "killing" anyone...

Additionally, the 335i only bests the G37 and S5 in fuel economy (by 1 mpg city on the S5 and 1mpg highway & city on the G37) at 19/28. But the C350 wins here, with a MPG rating of 20/29, and the best part is, unlike the G37 or 335i, when you add AWD, the ratings don't suffer.

I think Mercedes has done a great job on their new 3.5L DI engine. It offers performance and power near engines with twin turbos and superchargers, as well as the best mpg in the class...