Costs & verdict
Everyday costs, plus how reliable and safe it is
The 840i is the cheapest version of the 8 Series Gran Coupe, but it’ll cost you more as a cash buy than the cheapest Mercedes CLS or Audi A7 Sportback. The 840d is marginally more expensive, while the M850i is a whole different ballgame, and more closely aligned on price with the Porsche Panamera.
All these cars are expensive, though, so whether you're paying cash or purchasing with a PCP finance deal, you'll need deep pockets. Long term, the 8 Series Gran Coupe will hold onto more of its value after three years compared with a CLS, but the Panamera has the most rock-solid resale values.
All three engines pump out enough CO2 to land them in the top bracket for benefit-in-kind (BIK) company car tax, but the 840d should be the cheapest to fuel, with a WLTP combined average of 39.2mpg. The official 33.2mpg for the 840i isn’t bad, either, but the M850i will struggle to break out of the mid 20s at best.
You get lots of goodies as standard. In the 840i and 840d, these include front and rear climate control, power-folding door mirrors, ambient interior lighting, a head-up display, Merino leather seat trim, 20in alloy wheels, an electric bootlid, keyless entry and heated seats front and rear. Options are plentiful, too, and include soft-close doors and cooled seats. The M850i has larger, 20in alloy wheels and adds a sports exhaust.
The Gran Coupé hasn’t been crash tested by Euro NCAP, but it does get a good crop of safety features, such as automatic emergency braking (AEB) and lane change warning. Blindspot monitoring and lane assist (where it'll actively steer you back into your lane) are optional as part of the Driver Assistant Professional Package.
BMW finished a relatively lowly 21st out of 31 brands in the 2019 What Car? Reliability Survey. That’s one place below Audi but above 23rd-place Porsche and 24th-place Mercedes. The standard warranty is three years, with no mileage cap.
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