ALPINA B4 S Bi-Turbo

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B4 S Bi-Turbo Product Information

The ALPINA philosophy rests on a number of central pillars including effortless performance, abundance of torque, smooth automatic transmissions, an emotional soundtrack

and precisely tuned suspensions. This in summary sophisticated driving experience with a sporty touch is perfectly suited for elegant convertibles where an open roof amplifies

all sensations. Hence it is not without reason, that BMW ALPINA Convertibles based on the BMW 3 Series have a small and particularly loyal group of enthusiastic owners

who share a passion. The new B4 S Bi-Turbo Convertible carries on this legacy with its impressive performance, driving dynamics and elegant silhouette. The design of the B4 S Bi-Turbo Coupé combines muscular and delicate elements in one chic silhouette.

The Coupé is longer, wider and significantly lower than the Saloon. Its profile rakes from an imposing, muscular front accentuated with bold lines to a clean and stylish

rear. The front spoiler, with subtle ALPINA lettering, integrates seamlessly into the dynamic front apron which is characterised by large air intakes for the cooling system of the

turbo-charged engine, the transmission and the high-performance fixed-calliper brake system.


B4 S Model Range


The design of the Coupé successfully blends powerful sportiness and elegant beauty in one flowing form. The low, extended silhouette of the Coupé is just perfect for the ALPINA CLASSIC wheels. The timeless design with twenty spokes and concealed inner valve give the Coupé a light and dynamic appearance.


The design language of the B4 Bi-Turbo Convertible is defined by short overhangs, muscular shoulders ending in a powerful rear end, and the characteristic BMW metal folding roof. The sporty and powerful design of the front spoiler features functional air intakes and forms a perfect aerodynamic match with the discreet rear spoiler.