To Be OFFERED AT AUCTION WITHOUT RESERVE at RM Sothebys' The Boeckmann Collection event, 28 January 2027.

Offered Without Reserve | $75,000 - $125,000 USD Rare Porsche 928 Cabriolet conversion by bb-Auto Exclusiv, one of Germany’s most inventive tuning housesVibrant in blue over a highly individualized duotone interior trimmed in vivid blue leather Powered by Porsche’s magnificent all-aluminum water-cooled V-8 engine paired with a five-speed manual transaxleStunning array of period tuner equipment including Recaro C-seats, custom bb dashboard and steering wheel, and bb-Auto’s pioneering DINFOS digital information system Founded in Frankfurt by the charismatic and relentlessly inventive husband-and-wife team of Rainer and Kathrin Buchmann, bb-Auto Exclusiv emerged during the golden age of German tuning.

The Buchmanns worked primarily with Porsches for a simple reason: as Rainer put it, Porsche “built the most reliable, high-quality cars.” From that exceptionally solid foundation, they...