Fastest Speed
The fastest speed I have reached is 275 km/h according to my gps and the car felt perfectly stable and I know she could go faster.
I don't know how fast you will be able to go, but there will be two things limiting it - one will be a function of the engine RPM and final drive ratio. You can calculate that theoretical maximum based on your speed at, say 2K RPM. Knowing the redline is just above 6K, multiply by 3 and you've got it. I think it would be around 231mph, or 371km/h, based on my CLK which turns about 2K RPM at 77mph (124km/h)
Of course at high speeds, wind resistance becomes a factor, and you won't be able to reach that theoretical final drive wheel speed in top gear. At best, you'll be in 6th gear, but may even need 5th to attain your highest speed. Somewhere, there will be a trade-off where redline in one gear moves you faster than lower RPM's in a higher gear where there won't be enough torque to overcome the drag. So ultimately, wind resistance will be the limiting factor.
I know that the CLK63 BS is electronically limited to 300km/h (186mph). That would make one believe that it could go faster. Note that it probably has improved aerodynamics over the base CLK body, plus a much more powerful engine. If I had to take a blind guess, I'd peg the stock CLK550 at somewhere in the 175mph (280mkh) area. But again, I don't think I'd want to do that without the right tires and roads.
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These cars are defiantly cable of going 180+ with the right tires and road conditions (that is of course with the governor removed).
I don’t recommend trying this on the street but my 03 clk55 has hit 155mph multiple times (governed). During which it felt completely stable and like it wanted to keep accelerating...
I can’t wait to get my eurocharged tune!!!
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I'm not into street racing whatsoever but a top speed run on a deserted desert road is right up my alley.
I'm not into street racing whatsoever but a top speed run on a deserted desert road is right up my alley.





