Complex sentence: Again with Fangio at the wheel, a spider won the 1st Gran Premio Supercortemaggiore held in Meran in 1953; today this car is part of the Museo Storico Alfa Romeo collection.
Split into simpler sentences: Again with Fangio at the wheel, a spider won the 1st Gran Premio Supercortemaggiore held in Meran in 1953. The 1953 Supercortemaggiore winner spider is part of the Museo Storico Alfa Romeo collection.