there is a new BMW M4 Convertible which delivers around 11.49km to a litre of
fuel and reduced CO2 emissions. The car
joins BMW’s high-performance sports car line-up. The car in fact replicates the
performance figures of the new BMW M3 Sedan and the new BMW M4 Coupe. But this
one emphasises on style and appearance, especially with its open-top built.
BMW M4 Convertible’s styling cues includes a signature power dome for the
bonnet, eye-catching exterior mirrors in twin stalk style and flared front and
rear wheel arches bulging over forged light alloy wheels with mixed tyres in
18-inch (optional 19-inch) format.
car is powered by the newly developed six-cylinder in-line engine with M
TwinPower Turbo technology and high-revving character already familiar from the
M3 Sedan and M4 Coupe. The power unit generates maximum output of 431 bhp from
its 3.0-litre displacement and peak torque of 550 Nm across a wide rev band. It
sprints from 0 to 100 kmph in just 4.4 seconds (with the optional seven-speed M
Double Clutch Transmission) – but also sufficient reserves of power to cruise
along in relaxed but rapid style with the roof down.
bonnet and front side panels of the car are made from aluminium, as are many
components of the high-performance chassis. Added to which, ultra-lightweight
and – thanks to its hugely impressive rigidity – also extremely durable
carbon-fibre-reinforced plastic (CFRP) is employed in many areas of the new M4
Convertible. The drive shaft is one example, the use of CFRP allowing it to be
constructed as a single-piece unit. This makes for a significant weight saving
and a reduction in rotating masses. The CFRP precision strut in the engine
compartment, meanwhile, weighs only 1.5 kilograms yet offers rigidity superior
to that of a comparable aluminium component. It therefore plays a key part in
the car’s excellent steering response and precision, says a press note from BMW.
three-section folding metal roof of the BMW M4 Convertible has full interior
lining. It has excellent soundproofing and winter-proof construction. The roof
opens at the touch of a button in under 20 seconds – while travelling at up to
18 km/h, if required.
Picture of the BMW M4 launched globally