According to my calculations, the BMW is the most expensive petrol car that BMW sell. There is the i8 but that boasts hybrid technology that always adds to the bill.

M6 is certainly worthy of the honour. More stylish than the M5, hugely practical for a coupe and very, very fast. The 4.4-litre twin turbo at the heart of this wonderful machine is sensational – considering the car weighs two tons.

All coupes are designed to seduce and M6 has plenty to lure you in. The sumptuous interior, squat profile and handling that belies its size makes this a fantastic drivers car.

The steering, engine and suspension can all be adjusted to suit conditions – including beating the Audi RS7 in almost every department…