Well im not too sure on this. I did have a 97 C200 Elegance with the updated features. Im pretty sure the engine is the same as in the earlier models, ie DOHC, 16valves etc. Im not sure about whether changing the ECU is ok. Can someone shed some light on this? Also, the 5-speed auto is a treat but I think it would cost too much to do. If your after something quicker or more effortless, I suggest u upgrade to C240 or even a C280. I upgraded or some may say downgraded because I went and bought a 94' E280. Ive never looked back. Its a different story to a C-Class altogether

Christian

300TE
E280