Double-joint front axle with spring struts and anti-roll bar
The front axle of the new BMW sports sedan is based on a proven design which provides an optimal fusion of driving dynamics and comfort. The wheel suspension combines maximum stiffness with minimum weight, while aluminium torque struts, wishbones and swivel bearings bring a substantial reduction in unsprung masses. At the same time, the absence of torque steer means the kinematics of the double-joint axle could be optimally geared to the agility and dynamism of the new BMW 3-Series. This factor also has benefits for the new BMW 3-Series' electromechanical steering system, which brings less weight to the scales, helps cut fuel consumption and, just like the suspension, damping and elastokinematics, is precisely matched to the requirements of this vehicle.
See also:
Safety
Both the coupe and convertible have front airbags plus side-impact airbags
built into the front seats. As required of all 2012 models sold in the U.S., the
640i has standard antilock brakes and an ...
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified government test course. For example,
a tire graded
150 wou ...
USB interface for data transfer
USB interface for data transfer
Port for importing and exporting data, such as
music collections, on USB
devices.
Observe the following when connecting:
▷ Do not use force when plugging ...
