Designed by Vittorio Jano, the 6C-1500 SS car was sporting modification of 6-cylinder (6C) 1497 cc (1500) touring car, developed in 1925 and produced by Alfa Romeo since 1927. The 6C-1500 SS and its successors, 6C-1750 SS and 6C-1750 GS, were the major Alfa Romeo racing models in 1928 – 1931. The 6C-1500 SS debuted on 6 June 1927 on the newborn Circuit of Modena when the Sport was still a prototype equipped with the experimental twin-shaft engine. Two cars were lined up at the start, one for Attilio Marinoni and one for Enzo Ferrari, who won the race in front of his teammate. In 1929 the 6C-1500 car in the works team was replaced by new 6C-1750 SS, but was at disposal of several private entrants. One of the privateers, Italian Guido d’Ippolito from Calabria, raced the 6C-1500 in the 1930 season, including XXI Targa Florio. He finished the race 9th, 3 minutes behind the winner, Achille Varzi in works Alfa Romeo P2. D’Ippolito was killed in 1933 in Principessa de Piemonte road race. He raced a Scuderia Ferrari-entered Alfa Romeo 8C 2600MM co-driven by Franco Severi. Severi crashed the car when trying to avoid a horse carriage. Passenger d’Ippolito hit his head against the carriage and died immediately while Severi escaped unhurt.
| Season | Series | Event |
| 1930 | Grand Prix | Targa Florio |
| Driver | No. | Entrant |
| Guido d’Ippolito | 18 | Guido d’Ippolito |
| Scale | Manufacturer | Collection |
| 1:43 | Brian Phipps / Metro Conversion | |
| Cat. No. | Quality | Rarity |
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