Whether you opt for the C63 saloon, estate, coupé or convertible, there’s plenty of room up front for tall drivers to get comfortable, and the wide interior means you won’t feel too cramped next to your passenger. You get lots of storage options as well, with large door bins, a decent-sized glovebox and useful cubbies in the centre of the dash and beneath the front armrest.
There’s greater variation in rear space, though. Saloon and estate models have reasonable but not class-leading leg room, while head room in the saloon isn’t great for those over six feet tall. It’s also tight if you want to fit three reasonably sized adults abreast.
The coupé and convertible strictly seat two in the back. Tall adults will be okay on a short trip, but for longer journeys only children, or adults below average height, will be able to relax. The convertible is tighter still, due to the very upright rear seatbacks.
Usefully, those back seats fold 40/20/40 on all bodystyles and without leaving an awkward step in the extended load bay. Access for larger items is clearly most limited on the coupé and convertible. It’s better on the saloon, which has more luggage space overall, but choose the estate and you’ll have one of the quickest load-luggers on the market.