Alpina B6 S: The Rare BMW 6 Series-Based Coupe

Alpina's entire output has historically been capped at roughly 2,000 cars a year worldwide, which means any Alpina is a genuine rarity by design rather than accident. The B6 S, riding on the second-generation BMW 6 Series platform, sits at the far end of that scarcity — a car most enthusiasts will never encounter in the metal. For anyone who cares about the distinction between a tuner and a true low-volume manufacturer, Alpina's six-decade track record is the argument: this isn't a badge job, it's a separate production reality. The B6 S is worth understanding precisely because it represents what happens when engineering ambition meets genuine manufacturing constraint.