This exceptionally rare TWR BMW 335i is believed to be one of just three cars originally converted by Tom Walkinshaw Racing, one a 2.8l whereabouts unknown and only two 3.5l cars were converted; today this is the only know survivor of those 2. Built from a BMW E21 323i and the converted to a Alpina C1 by TWR and developed further by TWR and upgraded upgraded to the full 3.5-litre M30 “335” specification using a combination of Alpina and period performance components.

Originally supplied as an Alpina C1 before its conversion, the car features the correct 3.5 M30 engine, Alpina drivetrain elements, Recaro interior, and period-correct upgrades as documented in period discussions and ownership records. Chassis number 3, this example represents an extraordinarily rare piece of TWR and early BMW tuning history, from a time when Tom Walkinshaw Racing were pioneering high-performance BMW developments in the late 1970s and early 1980s — making it significantly rarer than contemporary Alpina conversions and virtually unknown even among specialists.