BMW Alpina has a long tradition of offering limited edition models built in low numbers, and a new one has just been unveiled.

The new Alpina B4 S Bi-Turbo is strictly limited to 99 examples, offered in both Coupe and Convertible styles, although it’s the Coupe that gets AWD as an option. Power is still coming from a twin-turbo 3.0-liter straight six engine, only now it’s fitted with a lightweight Akrapovic titanium exhaust system designed exclusively for the Edition 99, helping it save 7kg (15lbs).

Power figures are set at 445hp (452hp) and a solid 501lb-ft (680Nm) of torque, constantly available between 3,000 and 4,500 rpm.

The engine is bolted to an eight-speed automatic transmission that features a set of Alpina’s all-new bigger shift paddles, which are machined from solid aluminum and are finished in matte black. All models come with a limited-slip differential as well.

Alpina claims that the all-wheel drive version of the B4 S Edition 99 Coupe is capable of hitting 62 mph (100 km/h) in 3.9 seconds, followed by a 188mph (303km/h) top speed. The rear-drive Coupe version scores 4.2 seconds and 190mph (306km/h) respectively.

The exterior of the Edition 99 can be finished in exclusive paint options, such as Grigio Medio and Fire Orange, while the bodywork features high-gloss black trim elements. Meanwhile, the 20-inch Alpina Classic wheels are finished in Ferric Grey, but you can also get two exclusive Deco-Set options in matte black or matte blue.

The cabin is finished in the finest materials, portraying Alpina’s exceptional craftsmanship. Alcantara, leather and hand-finished stitching create a beautiful environment that also features electrically adjustable clubsport seats.

The new Alpina B4 S Bi-Turbo Edition 99 is available to order now in Germany, with prices starting from 74,705 euros ($84,700) for the Coupe and 80,756 euros ($91,555) for the Convertible.