See also:

2011 Mercedes-Benz S-Class Review
Even as BMW, Audi and Jaguar throw new cars into the luxury-flagship ring, Mercedes-Benz has kept its S-Class sedan competitive, with sedans that start below $90,000 and top out at more than double ...

Overhead control panel
Overhead control panel ...

Diesel Power
As if the R-Class' styling didn't make it unique enough, it's also one of the few models in the U.S. with an available clean-diesel engine. The diesel V-6 is rated 25 percent better in EPA-estimat ...