The Alfa Romeo P2 won the first World Championship in 1925, being victorious in two of the four championship rounds. Antonio Ascari drove it in the European Grand Prix at Spa and  Gastone Brilli-Peri  won the Italian Grand Prix at Monza after Ascari died while leading the intervening race at  Montlhery .
Although 1925 brought drastic changes of regulations, from 1924-1930 the P2 was victorious in 14 Grands Prix and major events including the Targa Florio. It was one of the iconic Grand Prix cars of the 1920s, and enabled Alfa Romeo, as world champion, to incorporate the laurel wreath into their logo.
The P2 was introduced by Alfa Romeo for the Circuit of Cremona in northern Italy in 1924, where Antonio Ascari won at over 158 km/h (98 mph), and then went on to win the speed trial at 195 km/h (121 mph). The car was the first creation of Alfa’s new designer Vittorio Jano who was recruited from Fiat by Enzo Ferrari . The P2 was powered by Alfa’s first straight-8 cylinder supercharged engine with 2  carburettors  placed after the compressor. Only 2 of the 6 original models survive, and they can be seen in the Alfa Romeo Museum in Arese and the Turin Automobile Museum. The P2 had two body styles using either a cut off or long rear.