New Audi A7 Sportback & Mercedes-Benz CLS vs BMW 6 Series GT

Mercedes-Benz set the trend for four-door coupΓ©s with the original CLS. Can the latest model continue to lead the way ahead of its German rivals?

Words By What Car? team

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Audi A7 Sportback rear seats

Space and practicality

Front space, rear space, seating flexibility, boot

Each of our test cars came with a head room-reducing sunroof (standard in the 6 GT, optional in the A7 and CLS). You barely notice its effect in the 6 GT, but in the lower-slung CLS and A7, those over 6ft tall will feel more hemmed in for height. At least front leg room is plentiful across the board.

It’s in the rear that the differences really tell. The CLS and A7 are wide enough only for two adults, and while there’s reasonable leg room for six-footers, again, head room is tight. The 6 GT is massive by comparison, with plenty of head room and more knee room than you’ll find in the 5 Series, so you can really stretch out. It’s wider, too, so it can easily seat three abreast when required, while the optional (Β£420) electric reclining rear backrests make it feel more akin to a limo than a stylised coupΓ©.

The 6 GT also has the biggest boot, capable of swallowing up to nine carry-on suitcases. Mind you, the A7 managed eight cases and the CLS a still praiseworthy seven, although being the only one with a saloon-style boot-lid (rather than a hatchback tailgate), it struggles to accept bulkier items. All three cars have 40/20/40 split-folding rear seats for added flexibility.

Audi A7 Sportback

The hatchback opening makes the A7’s boot surprisingly practical and there’s no awkward lip at the entrance to get in the way of loading. Sloping roofline eats into rear head room, though.

Boot 535-1390 litres Suitcases 8

BMW 6 Series GT

The 6 GT’s cavernous boot puts the others to shame; it managed to swallow nine carry-on cases. There’s limo-like space in the back, too – something passengers will really appreciate.

Boot 610-1800 litres Suitcases 9

Mercedes-Benz CLS

The CLS’s boot is far from pokey, but it doesn’t stand out in this company. The saloon boot means it has a smaller opening that the others and there’s a hefty lip at the boot entrance.

Boot 520 litres Suitcases 7

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