FWIW, 200 HP is not a lot and is, as far as I can tell, Mercedes' least powerful engine (201 HP 4-cylinder). In a 3,500 lb. car, it will not be especially fast.
(I used to have a 3,500 lb. coupe, a Pontiac GTO. Now that was fast. It had a 400 HP V8.)
(I used to have a 3,500 lb. coupe, a Pontiac GTO. Now that was fast. It had a 400 HP V8.)