De site van Alpina zegt in ieder geval dat het heel functioneel is, maar het zou ook wel gek zijn als daar stond dat het lelijke troep was die er alleen voor de show zit.
The exterior components that influence the aerodynamic properties of the B6 Bi-Turbo are not just there for aesthetic reasons – their design is subject primarily to functional premises and plays a central role in achieving excellent high speed stability. Take for example the front spoiler with the integrated carbon fibre front splitter. It causes more air to flow over and around the vehicle, simultaneously reducing the air masses which flow underneath by more than 10%. This leads to a noticeable stabilisation of the front-end at high speeds and plays a role in reducing any tendencies to understeer. The front spoiler, in conjunction with the rear spoiler, ensures that the B6 Bi-Turbo is very well ‘tethered’ overall. Uplift on the front axle is reduced by 14% and tends towards a value of zero on the rear axle from a speed of 150km/h. Instead of the rear spoiler, the Coupé is also available with a rear wing - which despite an impressive visual impact, fits precisely the contours of the rear area and reduces drag.