The 2015 BMW M4 Convertible sees BMW M GmbH
replicating the performance of the new BMW M4 Coupe and M3 Sedan,
with added benefit of a retractable hardtop. The new model finds
BMW M GmbH in its fifth generation globally with this new chapter in
According to a company statement, powering the
BMW M4 Convertible is the newly developed in-line six-cylinder engine
with M TwinPower Turbo technology. Maximum power output stands at 425bhp
from its 3.0 litre engine and serves up peak torque of 55Nm across a wide rev
band. The BMW M4 Convertible sprints from 0 to 100kmph in just
4.2 seconds with the optional seven-speed M Double Clutch Transmission.
A manual transmission variant will be available for the US market, but is
unlikely to come to the Indian Market.
Like the BMW M3 Sedan and BMW M4 Coupe, the
BMW M4 Convertible, the hood and front fenders are made of aluminium,
as are many components of the high-performance chassis. Ultra-lightweight and
strong carbon-fibre reinforced plastic (CFRP) is employed in many areas of the
new M4 Convertible. The drive shaft is just one example.
The use of CFRP enables the M4’s driveshaft to be constructed as one
single piece which not only offers significant weight saving but a reduction in
rotating masses as well. The CFRP high-precision front strut brace in the
engine compartment, meanwhile, weighs only 1.5 kg yet offers rigidity
superior to that of a comparable aluminium component. It provides an added
measure of steering response and precision. The BMW M4 Convertible will arrive
in US showrooms in late summer 2014 but no news of it being available in India
till probably next year.
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