2006 Mercedes-Benz CLS-Class CLS500 4dr Sedan (5.0L 8cyl 7A)
The car handles like a dream, and has plenty of pep with optional braking and ride styles. Abundant leg room for those of us with sore knees that need to be straight for a while. The rear seat is a little tight, but not so uncomfortable for a medium distance ride.
The body style is quite different than other cars on the road. People will notice you, and you do not have the bulky rear end that just about alll the other luxury sedans have.
An add-on cover for the rear console, with a seat belt so a 5th passenger can be accomodated in an emergency.