The 2007 Mercedes Benz S65 AMG is the best car I ever owned. I have owned a Bentley Continental Flying Spur, a Bentley Arnage, Maserati Quadroppe, and have driven a BMW 760 Li. None can compare to the true luxury car, the S65. For a 604 horsepower V12, I get a great 19.8 miles to gallon highway as an average, and every so often, I get 22. The ride is comfortable. It has agressive AMG styling and performance. To all who look for a true luxury car under $200,000 that (technically) compares to a Maybach 57s or a R-R Phantom, forget Bentley( Let me remind you, thought, the Bentley is good). Go for the excellent 2007 S65 AMG V12 BiTurbo.
I tried this powerhouse after driving BMW's for 10 years. More power than you will ever need (3 sets of tires in 18 months) but still an MB and not a BMW in drivability. Total brake failure (fluid drained out) in the first two weeks didn't help with impression but it was fine after that...no maintenance issues. Front fender is ripe for destruction on high parking bumpers. Traded recently for a winter car (S550 with 4Matic) but will go back to an S65 or BMW 7 series soon....
All runs in "Drive" because there are no other options. Fastest run was made with no brake torquing. Manual shifting not any faster. Transmission upshifts itself between 400 and 0 rpm before redline.
Soft pedal. Long travel. Lots of suspension settling after car actually comes to a stop. Quiet ABS.
Skid pad: Dynamic control invasive if the car begins to oversteer. And the system cannot be disabled. Flat cornering. In the slalom the active suspension is obvious and functional. Amazing precision considering the car's size and weight. Stability control reels in antics.