1932 Alfa-Romeo Tipo B Grand Prix Monoposto 1932 Alfa-Romeo Tipo B Grand Prix Monoposto Sold for $6 million Auction: Bonhams Festival of Speed Sale 2018 © Bonhams Home » FP » 2018 (Full Year): Ten Most-Expensive Cars Sold at Public Auction » 1932 Alfa-Romeo Tipo B Grand Prix Monoposto