Alpina's B4 S Edition 99 is a 190mph 4 Series

BMW M4 not rare enough for you? This is the Alpina B4 S Edition 99, and there are no prizes for deducing how many they’ll make from its name.

Yep, Alpina’s producing one short of a hundred, and over a regular B4 S it gets a bit more power. Its 446bhp places it between a BMW M4 Competition and M4 CS, but its 502lb ft batters both. Alpina claims 0-62mph in under four seconds if you choose the optional all-wheel-drive system. Whether doing so is in the spirit of a quickened-up BMW coupe is your call…

Further aiding its performance is a bit of lightweighting, via a titanium exhaust system from Akrapovic (which should also sound fantastic) and new 20in forged alloy wheels in Alpina’s renowned, many, many spoked style.

While it’s a special edition, you can make yours pretty bespoke, with leather, carbon and Alcantara all available inside, rear- or all-wheel drive and you can even have it as a convertible if you wish, too.

You shouldn’t; the coupe has a much more focused suspension set-up, not to mention the benefits of being around 250kg lighter. The coupe also claims 190mph, BMW’s standard 155mph limiter thrown uncaringly in the bin. It’s seriously quick, the Edition 99.

You’ll probably have to be quick to buy one too, given the 99-off run, but despite its rarity it looks better value than an M4 CS, with prices starting at £73,100 for the coupe, and £78,600 for the cabrio. Want one?