THE fourth generation of BMW's M3 Convertible arrives in Britain in April, and it will be the first M car to feature a retractable hard-top.

A 3,999cc V8-power unit sits under the bonnet, developing 420 horsepower and capable of powering the car from zero to 62mph in 5.3 seconds.

The price of this 155mph Convertible is £54,655, but add another £2,590 if the seven-speed double-clutch automatic transmission is preferred.