1932 Alfa-Romeo Tipo B Grand Prix Monoposto1932 Alfa-Romeo Tipo B Grand Prix MonopostoSold for $6 millionAuction: Bonhams Festival of Speed Sale 2018© BonhamsHome » FP » 2018 (Full Year): Ten Most-Expensive Cars Sold at Public Auction » 1932 Alfa-Romeo Tipo B Grand Prix Monoposto