Originally Posted by kmarei
Only 2 things impressed me on the C63
Seats and engine sound
The seats on the M3 always hurt my back
Whether you use the inflatable lumber support or not
The actually mechanism inside the seat starts to hurt my back after 20 minutes
And the engine sound on the C63 is amazing
i second the lumbar issue on the m3. I had the older e46 m3 and the lumbar support suck. I had to yank the back of the seat out and inserted some towel for extra lumbar support. i couldn't walk straight after more than 1 hour drive in the m3. I hated it.