The 2005 FIA GT Istanbul 2 Hours was the eighth race for the 2005 FIA GT Championship season. It took place on 18 September 2005 at Istanbul Park.
The 2005 FIA GT Istanbul 2 Hours was the eighth race for the 2005 FIA GT Championship season. It took place on 18 September 2005 at Istanbul Park.
Class winners in bold. Cars failing to complete 70% of winner's distance marked as Not Classified (NC).
| Pos | Class | No | Team | Drivers | Chassis | Tyre | Laps |
|---|---|---|---|---|---|---|---|
| Engine | |||||||
| 1 | GT1 | 9 |  Vitaphone Racing Team | Michael Bartels Timo Scheider | Maserati MC12 GT1 | P | 59 |
| Maserati 6.0L V12 | |||||||
| 2 | GT1 | 10 | Vitaphone Racing Team |  Fabio Babini Thomas Biagi | Maserati MC12 GT1 | P | 59 |
| Maserati 6.0L V12 | |||||||
| 3 | GT1 | 15 |  JMB Racing | Andrea Bertolini  Karl Wendlinger | Maserati MC12 GT1 | P | 59 |
| Maserati 6.0L V12 | |||||||
| 4 | GT1 | 2 | GPC Sport |  Jean-Denis Délétraz Andrea Piccini | Ferrari 575-GTC Maranello | P | 59 |
| Ferrari 6.0L V12 | |||||||
| 5 | GT1 | 6 |  GLPK-Carsport | Bert Longin Anthony Kumpen  Mike Hezemans | Chevrolet Corvette C5-R | M | 59 |
| Chevrolet LS7r 7.0L V8 | |||||||
| 6 | GT1 | 11 |  Larbre Compétition | Gabriele Gardel  Pedro Lamy | Ferrari 550-GTS Maranello | M | 58 |
| Ferrari 5.9L V12 | |||||||
| 7 | GT2 | 88 |  GruppeM Racing | Tim Sugden Emmanuel Collard | Porsche 911 GT3-RSR | M | 58 |
| Porsche 3.6L Flat-6 | |||||||
| 8 | GT2 | 66 | GruppeM Racing | Marc Lieb Mike Rockenfeller | Porsche 911 GT3-RSR | M | 58 |
| Porsche 3.6L Flat-6 | |||||||
| 9 | GT1 | 16 | JMB Racing | Philipp Peter  Can Artam Christophe Pillon | Maserati MC12 GT1 | P | 58 |
| Maserati 6.0L V12 | |||||||
| 10 | GT1 | 17 |  Russian Age Racing | Christophe Bouchut Nikolai Fomenko Alexey Vasilyev | Ferrari 550-GTS Maranello | M | 57 |
| Ferrari 5.9L V12 | |||||||
| 11 | GT2 | 74 | Ebimotors | Luigi Moccia Emanuele Busnelli | Porsche 911 GT3-RSR | D | 56 |
| Porsche 3.6L Flat-6 | |||||||
| 12 | GT2 | 69 | Proton Competition | Christian Ried Gerold Ried | Porsche 911 GT3-RS | D | 55 |
| Porsche 3.6L Flat-6 | |||||||
| 13 | GT2 | 56 |  Czech National Team | Jan Vonka Mauro Casadei Nicolas Armindo | Porsche 911 GT3-RS | D | 54 |
| Porsche 3.6L Flat-6 | |||||||
| 14 | GT2 | 57 |  Autoracing Club Bratislava | Miro Konopka Luigi Emiliani | Porsche 911 GT3-RSR | D | 54 |
| Porsche 3.6L Flat-6 | |||||||
| 15 | GT2 | 86 | GPC Sport | Marco Lambertini Stéphane Lemeret | Ferrari 360 Modena GTC | P | 45 |
| Ferrari 3.6L V8 | |||||||
| 16 | GT1 | 14 | Lister Storm Racing | Justin Keen  Liz Halliday | Lister Storm GT | D | 44 |
| Jaguar 7.0L V12 | |||||||
| 17 | GT1 | 25 | MenX | Peter Kox Robert Pergl | Ferrari 550-GTS Maranello | M | 43 |
| Ferrari 5.9L V12 | |||||||
| 18 DNF | GT1 | 4 | Konrad Motorsport | Franz Konrad Marco Saviozzi Maciej Marcinkiewicz | Saleen S7-R | P | 12 |
| Ford 7.0L V8 | |||||||
| 19 DNF | GT1 | 5 | Konrad Motorsport | Paolo Ruberti Robert Lechner | Saleen S7-R | P | 9 |
| Ford 7.0L V8 |