While there isn't much visual differences between the CL500,600,55 the 65 stands alone when it comes to power. The 604hp is almost too much for the rear wheels. I wish it had all wheel drive and was about 1500lbs lighter and was truly stand out that this vehicle cost close to $200K I was tempted to leave the window sticker permanently in the window. I also wish MB would not have put a governor on the vehicle it tops out at 155 where it still has plenty of room to stretch out to the 200 mark. I admit I don't feel 100% safe driving at the mid triple mark speeds b/c it is close to 6K lbs and would hate to have to try to stop or make a swerve If cash is tight go buy a BMW
key less go- although I sometime forget the key in my pocket at the valet..
drop weight down get rid of back seat-i never but anyone back there. all wheel drive,more distinct body for 65 get rid of Cl55 improve handling, get rid of governor, go LED on all lights and upgrade all leather surfaces move to a different sound system Bose is 90's