2014 Mercedes-Benz E-Class E550 2dr Coupe (4.7L 8cyl Turbo 7A)
Recently bought the Mercedes E550 Coupe. If you miss the open air feel of the a 60's muscle car coupe with no B pillar and gobs of horsepower and torque, then seriously consider this car. In fact, it is the only mid sized coupe with no B pillar and a big V8 engine currently available. Think a 1969 Pontiac GTO built by Mercedes; you would actually pay twice as much for a restored like new condition GTO and get half the car. I know, I owned one, and this car puts most any muscle car to shame including the new comparably priced Shelby Mustang; I had one if them too. 0-60 in 4.9 seconds, conservatively rated at 402 HP and 443 ft/lbs of torque, out handles any 60's muscle car, >20 mpg city/hwy.
The twin turbo V8 engine is a marvel. Tons of smoothly delivered HP and torque, great rumbling exhaust with the windows down, but quiet enough with the windows up so you can listen to the great sound system.
It unbelievably returns over 20 MPG combined city/hwy for a car with this much power and performance weighing 4,150 pounds.
Totally unobtrusive driver assistance package, which in no way interferes with the driving experience, but will probably save you from doing major damage and killing yourself if you do not respect the power at hand.
None; this could be the perfect blend of comfort, performance, mileage, and looks.