BMW M Division unveils M4 Convertible before its public debut at the New York International Auto Show.
With the BMW M3 and M4 arriving in June the convertible version will follow suit in September marking the fifth generation high performance convertible from the M division.
The M4 Convertible is powered by 425 bhp TwinPower Turbo in line six cylinder engine from the M3 Saloon and M4 Coupe mated with either a six speed manual or optional seven speed M double clutch transmission (M DCT). This M4 is lighter and more powerful than the outgoing M3 convertible with a 0 to 60 time of 4.6 seconds (4.4 seconds with M DCT transmission) whilst being 60kg lighter even though there is even more lavish options as standard.
The new engine is change from the naturally aspirated V8 with the inline six cylinder having two mono-scroll turbochargers developed by BMW M. The benefit of the turbochargers means more power, more torque and increased fuel economy for this M model. A monstrous 550Nm of torque is available from 1,850 rpm which is exactly the same point of which 424 bhp is achieved and maintained till 7,300 rpm which is gives a greater band of power regardless where you are in the rev range.
The M division have made sure you know this a M model with the iconic quad exhaust system ensures an unmistakeable M sound. They have used advanced weight saving technology and aerodynamics to maximising performance and efficiency with a low kerb weight of 1,750 kg through the use of aluminium bonnet, front wings, chassis components while carbon fibre reinforced plastics (CFRP) used in the crank shaft and strut brace in the engine bay.
The M4 Convertible features various aerodynamic features for reduce drag and downforce by the front apron, smooth underbody and Aero curtains, twin-stalk door mirrors and M side gills with integral Air-Breathers behind the front wheels.
The M4 is a high performance car with balanced low fuel consumption and CO2 emissions with a capability to achieve 31mpg and emit 213g/km of CO2, the M DCT improves these figure to 32.5mpg and 203 g/km of CO2. All this is achieved with a raft of EfficientDynamics fuel saving technologies: Auto Start-Stop, Brake Energy Regeneration, Optimum Shift Indicator (in manual mode only with the M DCT transmission), on-demand operation of ancillary units, a map-controlled oil pump and a final drive with optimised warm-up behaviour.
Any M model is at home on the track or the road because of the tuned chassis and driver systems which begins with the double joint spring strut suspension at the front and aluminium five link axle at the rear. UK model comes as standard with M adaptive dampers and electronically controlled limited slip differential to enhance traction and performance regardless of the conditions while BMW M Compound brakes ensure maximum stopping power, fad resistance and low weight.
On the outside the M4 Convertible unquestionable a M car with a pronounced powerdome in the bonnet, sculpted front apron with three air intakes, flared front and rear arches, M badging, black kidney grille, quad tailpipes, Air Breathers behind the front wheel and standard UK fitment of 19 inch M double-spoke light alloy wheels.
The interior features numerous M division highlights with the three colour M stitched steering wheel, illuminating M logos on the front headrests, electrically-adjustable heated and contoured leather M seats with recessed head restraints and integrated seatbelt.
The M4 convertible has a dual personality with the three part metal roof which changes from coupe to convertible in 20 seconds without obstructions such as roll over bars, aerials etc. This time the roof can be raised up to speeds of 8mph in the case of a sudden down pour but while the roof is up the cabin 2dB quieter than before. An innovative new Loading-aid raises the folded roof when it is stowed in the boot to give owners access to their belongings in just 6 seconds. The luggage capacity has also increased to 370 litres when the roof is closed and 220 litres when it is stowed.
The UK release for the M4 Convertible will be in September and will come with following standard equipment: adaptive M dampers, 19-inch alloy wheels, heated front seats, BMW professional media package, upgraded Bluetooth and USB along with all round parking sensors.
For more information on the M4 convertible please contact your local BMW dealer