| GPL racing @ gaiztor.com 2015 - Tiempos de precalificación |
| Riverside 1960 |
| 1 | quico giralt G25 | 1:50.472 | Honda |
| 2 | Trooper 55 | 1:50.692 | Brabham |
| 3 | aitor fernandez | 1:51.247 | BRM |
| 4 | Morcoran | 1:51.955 | Ferrari |
| 5 | Jose Luis Mezcua | 1:52.030 | Cooper |
| 6 | Nick Xug | 1:52.080 | Cooper |
| 7 | David Sochenna | 1:55.437 | Brabham |