5 second CLK 500
I'm completely new to Mercedes cars and this model in particular. What would it take to make it a 5.0 second (0-60) car and is it even possible or would I be better off selling it and buying a 550 or a 55 AMG?
The CLK55 is listed at 5.0 seconds, and the CLK550 at 5.1, but it's actually faster than the CLK55 (it's grossly understated because they didn't want to infuriate CLK55 buyers from the prior year). So your lowest cost option is to buy a CLK550. But it might be more fun to tune the CLK500.
Do you know anything about the gearbox differences between these cars? Is it true that there is a 5 speed replacement or something like that for non AMG versions?
P.S: would you know why it says it's an A 209 and not a W 209? As I understand, A and C are just different versions of the W 209. Am I correct?
I've heard about an LSD upgrade from Kleemann. Would that compensate for the differential? I don't know anything about the transmission though. Thank you.
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- You didn't give your budget, but the cheapest/easiest way for performance is getting a ECU and TCU tune from one of the many members on the boards. ECU tunes can be had by Eurocharged, Renntech, Kleemann, BIP, OE Tuning, etc and TCU tunes can be had by Eurocharged, Kleemann, and B.I.P. With the tunes, you will pick up more power, changes shift points, change the throttle maps, and program quicker shifts. It will cost about a $1K, but that should be enough to get a 5 second 0-60.
- Don't worry about the Transmission. My car has 400RWHP, stock non-AMG transmission and a TCU tune; I have no issues after 25,000 miles. While the AMG transmissions may have a few heavy duty parts, the main difference between AMG and non-AMG is the TCU tune and you can get QUICKER than AMG shifts with a tune.
- If your budget is higher or have any loftier goals let us know. Checkout any of my mod threads for more info.


