Full disclosure. The M240i does not have a 4.0-litre engine. BMW nomenclature has paid little attention to engine capacity for years, so don’t be fooled. No, under the bonnet is a 3.0-litre straight-six TwinPower turbo engine, that has gained more horsepower and torque. Peak power has increased to 335hp – a rise of 14hp – whilst twist is up to 369lb-ft. That last figure is significant for two reasons: it’s the same torque as found in the E39 M5 but, more importantly, it’s the exact same amount as the M2 Coupé.
Performance is improved over the M235i, with 0-62mph taking just 4.7 seconds in the M240i when fitted with the optional eight-speed Sport Automatic gearbox. The six-speed manual car needs 4.9 seconds to do the same sprint, with both topping out at an electronically limited 155mph top speed. We didn’t experience the three pedal car, so can’t comment on how it compares, but the automatic ‘box is supremely efficient and effective at banging through the ratios. Eight gears are probably overkill, especially with so much torque on offer, but they contribute to respectable sounding CO2 and mpg figures.
The automatic transmission also suits the slightly more laid-back, cruiser, image of the Convertible version. (more…)