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Mercedes C-Class dimensions – interior and exterior sizes

The Mercedes C-Class has always been about elegance, style and a bit of luxury, and the new version is the best combination of this format so far.

Its swoopy, stylish shape and fanstastic interior (good enough to help it win our car interior of the year award in 2014) make sure you always arrive at your destination looking smart and unflustered by the drive. The problem is that it’s so nice inside it’s easy to gloss over whether you’ll actually fit your friends and family in it – and whether or not you’ll be able to park it once you get it home.

Our dimensions guide is designed to help you work out whether the C-Class is the practical option for you.

Exterior dimensions

Seems obvious, doesn’t it? But we know more than a few people who have been so wrapped up in the fun of the test drive that they’ve had a touch of embarrassment once they’ve got their new cars home. So ask yourself this before you get too excited: will the C-Class fit on your driveway?

The C-Class is Mercedes’ second smallest saloon model (above the CLA), although you’d be forgiven for mistaking it for the E-Class. It’s certainly grown in size over the years, and the new model is 95mm longer and 40mm wider than before, making it larger than the BMW 3-Series.

This is something to consider if you often park in tight spaces, although C-Classes come with a reversing camera as standard, which should help.

External dimensions
Length 4,686mm (Estate 4,702mm)
Width 2,020mm
Height 1,442mm (Estate 1,457mm)
Wheelbase 2,840mm

Interior dimensions

You would expect the C-Class’s growth spurt to offer more generous passenger space than rivals, but unfortunately it’s only on a par with the BMW 3-Series. Most of the extra space has been used to make the C-Class feel more luxurious and refined. Space up front is generous and rear room is better, but still a little tight compared with cheaper family saloons, and the boot is almost identical to the 3-Series, both in saloon and estate models. The estate model has less headroom in the front than the saloon, although we’re not entirely sure why.

Interior dimensions
Headroom front 1,039mm (Estate 1,015mm)
Headroom rear 942mm (Estate 974mm)

Boot space

The Mercedes, in saloon form, is one of the best in class in terms of boot space, at 480 litres (oddly identical to the BMW 3-Series). The estate only offers 10 litres more room with the seats up than the saloon, but the 40:20:40 split fold seats mean that seat-down space increases to a respectable 1,510 litres. The choice of splitting the middle seat also means you get to carry long items, such as skis, and still have space for four passengers, which is useful. There are also buttons on the side of the seats and in the boot that electrically release the backrests, allowing easy folding.

Boot space (saloon)
Seats up 480 litres
Seats down
Boot space (estate)
Seats up 490 litres
Seats down 1,510 litres

Turning circle and fuel tank capacity

An 11 metre turning circle is very reasonable for this class of car, allowing easier three-point turns. The 66-litre fuel tank is a good size and allows the C220 CDI (capable of 70mpg) one of the best fuel ranges in its class. The tank drops in size to 50 litres on the C300 Hybrid model to allow room for the electric motor, but it still offers a superb range considering its extra performance.

Turning circle and fuel tank
Turning circle 11 metres
Fuel tank 66 litres (Hybrid 50 litres)


Thanks to the generous equipment and unrivalled luxury, the C-Class isn’t the lightest small saloon around. The equivalent 3-series is about 50kg lighter. This counts against it very slightly in terms of performance, although fuel economy figures for the diesels certainly don’t suffer. The estate is another 50kg extra, but that isn’t too noticeable. The hybrid model is especially heavy, thanks to the electric motor and batteries, but the stonking performance and fantastic economy offset this.

Lightest Heaviest
1,445 (C200 SE Manual saloon) 1,715kg (C300 Blutec Hybrid)

Find out more

Read our Mercedes C-Class review section to find out what critics think of the car, and check our C-Class colours guide to see which shade you prefer. Also, our Mercedes C-Class deals page will show you all available trim and engine options, as well as letting you see how much you could save off the list price of each one.

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