2014 Mercedes-Benz E-Class E550 2dr Coupe (4.7L 8cyl Turbo 7A)
The front standard seats are
miserably hard and un-conforming, plus being too low at any setting.
Road noise isolation is also poor and worse than the Toyota cars I rent on flying trip destinations.
The engine emits rude noises on initial cold start up, a problem which is euphemistically referred to in the owner's manual as "a different sound."
Pluses include a smooth and effective engine stop-start system at stoplights, ample power, excellent initial reliability, and good body finish and fit.
Overall, I would rather have the new Kia K900 as it offers me more luxury and features for the same or less amount of money.
Power, fit and finish, initial reliability
Better seats, more headroom, better road noise isolation, quieter engine at startup.