So I should really hate the M6 Gran Coupe. It is, after all, a four-door saloon version of a coupe itself derived from… a four-door saloon. OK, it's got a lower roof and a sportier look. But it's fundamentally the same and is, arguably, little more than an M5 with less headroom and a price premium of £20,000. You'd expect, therefore, lots of self-righteous 'what's the bloody point' harumphing, especially given I've driven various M5s and M6s from this soon to be replaced twin-turbo V8 generation and never really felt the love.
On paper it all looks so promising too. The 4.4-litre motor has a thumping 560hp and 502lb ft of torque, drives the rear wheels via a fancy locking differential and seven-speed dual clutch gearbox that, thanks to a plethora of driving modes, can do smooth and refined or fast and punchy. Sure, it weighs nearly two tonnes but the engine didn't get the memo, gifting it a 4.2-second 0-62 time and top speed comfortably in excess of its 155mph limiter. So it's quick.
And it'll do the full repertoire, from stylish luxurious transport with a mean streak to full-on tyre-smoking monster. But for all that firepower the engine is curiously characterless, to the point where BMW (in)famously had to generate false sound over the speakers. And for all the configurability there doesn't seem to be one mode in which everything quite gels. Kind of playing to the worst 'M for marketing' fears really.