 Having owned many, many Mercedes and other performance cars, I find my S65 to be the finest. Simply incredible peformance-the engine and exhaust are excellent. Admittedly I am a real fan of Mercedes. I find them and particularly the S class to be an excellent all around value when scoring on the basis of safety, performance, comfort, resale value and maintenance costs-in this order. Maintenance issues have been extremely minor. Just done routine maintenance and very minor warranty work. I just wish I could drive it on our US highways at the speeds this car was intended to be driven. At first going from an S500 to S55 I was leery of moving upto the S65. Now no more!