| 2015 World Drivers Championship 1.6 Litre Turbo Charged Maximum of 6 Cylinders |
| Driver | Nat. | Car-Engine-Model | Car Number |
| Sebastian Vettel | D | Ferrari SF15-T-Ferrari | 5 |
| Kimi Raikkonen | FIN | Ferrari SF15-T-Ferrari | 7 |
| Sergio Perez | MEX | Force India VJM08-Mercedes | 11 |
| Nico Hulkenberg | D | Force India VJM08-Mercedes | 27 |
| Romain Grosjean | F | Lotus E23-Renault | 8 |
| Pastor Maldonado | V | Lotus E23-Renault | 13 |
| Will Stevens | GB | Manor-Marussia MR03-Ferrari | 46 |
| Roberto Merhi | E | Manor-Marussia MR03-Ferrari | 98 |
| Alexander Rossi | USA | Manor-Marussia MR03-Ferrari | 53 |
| Fernando Alonso | E | McLaren MP4/30-Honda | 14 |
| Jenson Button | GB | McLaren MP4/30-Honda | 22 |
| Kevin Magnussen | DK | McLaren MP4/30-Honda | 20 |
| Nico Rosberg | D | Mercedes MGP F1-W06 | 6 |
| Lewis Hamilton | GB | Mercedes MGP F1-W06 | 44(1) |
| Daniel Ricciardo | AUS | Red Bull RB11-Renault | 3 |
| Daniil Kvyat | RF | Red Bull RB11-Renault | 26 |
| Marcus Ericsson | S | Sauber C34-Ferrari | 9 |
| Felipe Nasr | BR | Sauber C34-Ferrari | 12 |
| Max Verstappen | NL | Toro Rosso STR10-Renault | 33 |
| Carlos Sainz Jr. | E | Toro Rosso STR10-Renault | 55 |
| Felipe Massa | BR | Williams FW37-Mercedes | 19 |
| Valtteri Bottas | FIN | Williams FW37-Mercedes | 77 |
Note:
Hamilton has the option of number #1 or #44, as been the current champion for 2015,
As per FIA driver number rules, but has settled on using #44 for the season.
After the passing of Jules Bianchi after his accident at the 2014 Japanese GP
the #17 was retired from use in respect for his passing.