Antonio Pizzonia (Photo: Auto GP)
South American duo Antonio Pizzonia and Facu Regalia were quickest in Friday practice for the Auto GP round at Silverstone.
Championship leader Pizzonia, who had won the LMP2 class of the 6 Hours of Silverstone in 2013, controlled the first session with an early flying lap.
The Brazilian ended up a whopping 1.5s clear of Zele teammate Luis Sa Silva, while Regalia rounded out the top three.
Christof von Grunigen led the Paolo Coloni Racing charge in fourth, ahead of third Zele driver Andres Mendez and Giuseppe Cipriani, while series returnee Loris Spinelli and Virtuosi’s sole entrant Nikita Zlobin completed the order.
Session two featured a relatively early banker by Regalia, which would be unmatched by the rest of the field and ended up as the best lap of practice altogether.
Pizzonia was slightly behind his own result from the morning and went second, while Sa Silva concluded a familiar top three.
Cipriani improved to go fourth, beating von Grunigen, Zlobin and Mendez.
Spinelli sat out the session due to what was described as a technical issue.
Combined practice results
| Pos. | Driver | Team | S1 | S2 |
| 1 | Facu Regalia | FMS Racing | 1:48.417 | 1:45.993 |
| 2 | Antonio Pizzonia | Zele Racing | 1:46.812 | 1:46.833 |
| 3 | Luis Sa Silva | Zele Racing | 1:48.311 | 1:48.106 |
| 4 | Giuseppe Cipriani | Ibiza Racing Team | 1:50.931 | 1:48.793 |
| 5 | Christof von Grunigen | Paolo Coloni Racing | 1:49.345 | 1:49.172 |
| 6 | Andres Mendez | Zele Racing | 1:49.610 | 1:50.869 |
| 7 | Nikita Zlobin | Virtuosi UK | 1:53.102 | 1:49.615 |
| 8 | Loris Spinelli | Paolo Coloni Racing | 1:51.594 | No Time |
Personal best time in bold
Best time of session in italics