Costs & verdict
Everyday costs, plus how reliable and safe it is
As a cash buy, the BMW 4 Series Gran Coupe is priced very close to the standard BMW 4 Series, making it good value if you value the extra space. At first glance, it seems expensive compared to other rivals, but the Gran Coupe only comes with high trim levels, so an Audi A5 Sportback or Mercedes CLA with comparable equipment levels will set you back about the same.
The 420d will be the one for company car buyers who want to minimise the tax rate because of its low CO2 emissions. It’s also the most efficient engine, managing up to 57mpg, although adding xDrive four-wheel drive will increase emissions slightly. The 420i will be the cheapest option for anyone that wants to buy using PCP car finance and, despite being less efficient than the diesel, it’ll still manage around 41mpg.
The 4 Series Gran Coupe is too new to have featured in our 2021 What Car? Reliability Survey but BMW as a manufacturer placed a rather average 13th out of the 30 brands included. While that may be towards the middle of the table, it’s still above premium rivals Audi and Mercedes.
When tested by Euro NCAP for safety, the 4 Series scored five out of five stars. The A5 Sportback scored the same, but that was several years ago and tests have become much more stringent since so, while it's hard to compare the two, the 4 Series Gran Coupe might keep you safer in a crash.
BMW gives you plenty of standard safety equipment, including automatic emergency braking (AEB) and lane-departure assist. The optional Driving Assistant Professional pack (which comes as part of the Technology Plus Pack) adds adaptive cruise control, a more advanced lane-keeping assistant, a front cross-traffic alert system and an automatic speed limit assist.