Complex sentence: Moss's first Formula One win was in 1955 at his home race, the British Grand Prix at Aintree, driving the Mercedes-Benz W196 Monoposto for a convincing 1-2-3-4 win for the German marque.
Split into simpler sentences: Moss's first Formula One win was in 1955 at his home race, the British Grand Prix at Aintree. He was driving a Mercedes-Benz W196, and led home a 1-2-3-4 win for the German marque.