BMW M4 Convertible | spy shots

With the new BMW M4 Coupe out in the open it's only a matter of time before its convertible counterpart is unveiled. Carsguide spy photographers have captured the new M4 Convertible in minimal camouflage, leaving little to the imagination.

The front-end design is, logically, identical to that of the M4 Coupe. BMW's new 'connected' headlight design – integrated with the wider kidney grille -- features with large, aggressive-looking air intakes below. Like the M4 Coupe, the Convertible also features a bonnet bulge, more aerodynamic door mirrors, 'gills' in the front fenders and quad exhaust tips.

The M4 Convertible is also considerably wider than standard 4 Series Convertible models with flared front and rear wheel arches housing wider wheels and tyres that give a sportier stance. A metal folding hardtop that exaggerates the convertible's hip width has also replaced the Coupe's long sloping roof so the M4 Convertible looks especially aggressive when viewed from the rear.

And with a 3.0-litre twin turbo straight-six engine under the bonnet, you'll probably be seeing a lot of the M4's rear. Peak power is up from 309kw to 315kw and torque has risen from 400nm to 550nm compared to the old M3 Convertible, which the M4 replaces. 

Power is sent to the rear wheels via a standard six-speed manual transmission or optional M-DCT double clutch system. The M4 transmits its power to the road through an electronically controlled limited slip differential dubbed 'Active M-Differential.'

In Coupe form the M4 takes just 4.1 seconds to reach 100km/h if the M-DCT gearbox is optioned or 4.8 seconds for the three-pedalled car. But the convertible is expected to be slightly slower due to its extra curb weight. Like the new M4 Coupe the latest topless M car is expected to be significantly lighter than the M3 model that it replaces thanks to increased use of aluminium and carbon fibre in the body. The new model will also be more fuel-efficient than the old V8-powered M3.

Expect the new BMW M4 Convertible to debut at the Geneva Motor Show next month and go on sale in overseas markets shortly afterward, possibly reaching Australia at the end of the year or early in 2015.