The most revered Group B rally car ever built #ComingToQuail 🔥 The 1985 Audi Sport Quattro S1 E2, one of the 20 S1 E2s constructed by Audi for competition. No major Group B collection is complete without an Audi S1 E2—and fewer still can claim one that led a WRC event under factory control. With its rare blend of pedigree, performance, and preservation, RE10 represents a true halo car from rallying's most dramatic era. Register To Bid The Quail Auction | 15 August 2025 | Carmel, Quail Lodge & Golf Club #ComingToQuail #Bonhams #BonhamsCars #Auction #GroupB #Audi