a leg: balked by Trossi's Alfa Romeo P3, he lost control of his privately entered Maserati 8CM, which skidded, rolled, and hit a tree. Bored in hospital, he decided to enter the AVUS-Rennen just over four weeks later. As his left leg was too badly injured to operate the clutch, his Maserati was modified for him to work the pedals with his right foot. Troubled by cramp, he finished fifth. By the time of the Penya Rhin Grand Prix in late June, Nuvolari's leg was finally out of plaster but still painful. He retired his Maserati with technical problems. In the Italian Grand Prix, he debuted Maserati's new 6C-34 model. It performed poorly and Nuvolari could finish only fifth, three laps behind the Mercedes-Benz W25s of Caracciola and Fagioli, and also trailing the Auto Union As of Stuck and Leiningen, and the Alfa Romeo P3s of Trossi, Comotti, and Chiron. At the end of September, he finished third in the Czechoslovakian Grand Prix (Masaryk Circuit), behind Caracciola and Stuck. 1935 For 1935, Nuvolari set his sights on a drive with the German Auto Union team. It lacked top-line drivers but relented to pressure from Achille Varzi, which did not want Nuvolari in the team. Nuvolari then approached Enzo Ferrari, who at first rebuffed him as he had previously walked out on the team. Italy's prime minister Mussolini helped persuade Ferrari to take Nuvolari back. This was the year that Nuvolari achieved the 'Impossible Victory', which many regard as the greatest win in all of motor racing history: driving an outclassed Alfa Romeo P3 (3167 cc, supercharged, 265 hp) in the German Grand Prix at the Nürburgring, he beat all the dominant German cars—five Mercedes-Benz W25s (3990 cc, 8C, supercharged, driven by Caracciola, Fagioli, Lang, von Brauchitsch, and Geyer), and four Auto Union Bs (4950 cc, 16C, supercharged, driven by Rosemeyer, Varzi, Stuck, and Pietsch). The crowd of 300,000 applauded Nuvolari, but the representatives of Nazi Germany were enraged. 1936 Nuvolari had a big accident in May during practice for the Tripoli Grand Prix and it is alleged that he broke some vertebrae. Despite a limp, he took part in the race the following day and finished eighth. 1937 At the beginning of 1937, Alfa Romeo took its works team back from Ferrari and entered it as part of the Alfa Corse team. Nuvolari stayed with Alfa Romeo despite becoming increasingly