The 2008 Superstars Series season was the fifth season of the Campionato Italiano Superstars (Italian Superstars Championship) and the second season of the International Superstars Series.The Italian championship was won by Gianni Morbidelli driving for Audi, while the international series was won by Stefano Gabellini driving for BMW.
| Team | Car | No. | Drivers | Rounds |
|---|---|---|---|---|
 Audi Sport Italia | Audi RS4 (B7) | 1 | Gianni Morbidelli | All |
| 4 |  Steven Goldstein | 1–6 | ||
| Simone Campedelli | 7 | |||
| Agostino Penna | 8 | |||
| 44 | Giorgio Sanna | All | ||
| 45 | Marco Baroncini | 6 | ||
| Ferlito Motors | Jaguar S-Type R | 2 | Davide Rigon | 2 |
| Francesco Iorio | 4 | |||
| Ermanno Dionisio | 6 | |||
| 3 | 7 | |||
| Alessandro Cicognani | 2 | |||
| Claudio Melotto | 6 | |||
| Lanza Motorsport | BMW M5 (E39) | 6 | Maurizio Strada | 2–3 |
| 52 | Mauro Simoncini | 3 | ||
| GASS Racing | BMW M5 (E39) | 7 | Alessandro Battaglin | 1–3 |
| Millenium Team | 9 | Maurizio Lusuardi | 7 | |
| 69 | Kristian Ghedina | 1–4, 6 | ||
| ROAL Motorsport | BMW M3 (E90) | 9 | Luca Rangoni | 6 |
| 69 | Kristian Ghedina | 7–8 | ||
| Speedstar Team | Mercedes-Benz C63 AMG | 18 | Max Pigoli | 2–3, 6–8 |
| Claudio Melotto | 4 | |||
 Habitat Racing | BMW 550i (E60) | 21 | Francesco Ascani | All |
| Racing4You | Chrysler 300C SRT-8 | 17 | Sascha Bert | 1 |
| Davide Rigon | 4–5 | |||
| Santucci Motorsport | Cadillac CTS-V | 33 | Roberto Benedetti | 1, 7–8 |
| BMW M5 (E39) | 34 | Fabrizio Fede | 1 | |
| Maurer Motorsport | Chevrolet Lumina CR8 | 46 |  María de Villota | 5 |
| CAAL Racing | BMW M5 (E39) | 52 | Andrea Pagliai | 1 |
| Moreno Petrini | 2 | |||
| Mauro Cesari | 4–6 | |||
| Alessio Alcidi | 8 | |||
| BMW 550i (E60) | 54 | Stefano Gabellini | All | |
| BMW M5 (E39) | 56 | Leonardo Baccarelli | 1–5, 7–8 | |
| 58 | Roberto Papini | All |
| Round | Circuit/Location | Date | |
|---|---|---|---|
| 1 | Autodromo Vallelunga "Piero Taruffi", Campagnano | April 20 | |
| 2 | Autodromo Internazionale del Mugello, Scarperia | May 4 | |
| 3 | Autodromo Nazionale di Monza, Monza | May 18 | |
| 4 | Autodromo dell'Umbria, Magione | June 8 | |
| 5 | Circuit de la Comunitat Valenciana "Ricardo Tormo", Valencia | June 29 | |
| 6 | Autodromo "Riccardo Paletti", Varano de' Melegari | August 31 | |
| 7 | Misano World Circuit, Misano Adriatico | September 14 | |
| 8 | Adria International Raceway, Adria | September 28 | |
| 9 | Motorsport Arena Oschersleben, Oschersleben | October 12 |
| Point system for qualifying | ||||
|---|---|---|---|---|
| Position | Pole | 2nd | 3rd | |
| Points | 3 | 2 | 1 | |
| Point system for race | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Position | 1st | 2nd | 3rd | 4th | 5th | 6th | 7th | 8th | 9th | 10th | |
| Points | 20 | 15 | 12 | 10 | 8 | 6 | 4 | 3 | 2 | 1 | |
| Bold – Pole Italics – Fastest Lap |
| Bold – Pole Italics – Fastest Lap |
| Position | Team | Points | |
|---|---|---|---|
| 1 | CAAL Racing | 157 | |
| 2 | Millenium Team | 49 | |
| 3 | Habitat Racing | 28 | |
| 4 | Ferlito Motors | 19 | |
| 5 | Lanza Motorsport | 19 | |
| 6 | Racing4You | 16 | |
| 7 | Speedstar Team | 15 | |
| 8 | GASS Racing | 15 | |
| 9 | Santucci Motorsport | 4 | |
| 10 | Maurer Motorsport | 0 |