Chassis & Suspension
Like every automobile made by ALPINA, the D3 Bi-Turbo also places special demands on its chassis. The intelligent chassis layout permits a high level of comfort over long distances and in urban traffic, as well as marked driving dynamics and sportiness.
The adaptive ALPINA sports chassis solves this conflict of interests by means of electronically adjustable dampers in collaboration with tuned springs, additional springs and anti-roll bars. It allows the driver to use the Drive Performance Control to select the chassis setting and driving dynamic properties (Eco Pro, Comfort, Sport, Sport+). Subtle measures taken on the elastokinematics as well as on the camber and toe in values adapted to the wheel/tyre combination achieve the neutral handling that is typical of ALPINA. The 19” ALPINA CLASSIC wheels with MICHELIN Pilot Sport tyres, in conjunction with a stiffening of the body at the front of the car, contribute to the high level of accuracy, precise steering behaviour and light handling. Overall, the chassis offers a high degree of comfort and sportiness, achieves neutral handling across a wide range of driving situations and ensures stability – and therefore a good sense of safety even at high speeds.
The Drive Performance Control also controls further parameters that influence the driving dynamics, such as the power steering and the driving stability control system. The latter is subject to an ALPINA-specific sporty coding designed for the chassis of the D3 Bi-Turbo. The variable sports steering from BMW, which is installed as standard, has a progressive characteristic that significantly reduces the steering movements required when parking, for example.
Optimal braking values are provided by an 18“ high-performance brake system, with 370 mm brake discs at the front and 345 mm brake discs at the rear. Aluminium callipers (4-piston on front axle, 2-piston on rear axle) painted in blue and bearing the ALPINA logo, in conjunction with highly temperature-resistant pads, ensure fading stability and excellent pedal feedback.
In order to ensure brisk and dynamic driving also in the winter months, an ALPINA CLASSIC 19” winter wheel set is available with MICHELIN Pilot Alpin PA3 M+S tyres all round (8 x 19” at front, 9 x 19” at rear) with 245/35 R19 93W (245/35 R19 93W C /E / 73 dB).