Following technical checks, stewards decided that the Castrol Honda cars of Gabriele Tarquini and Tiago Monteiro and the Zengö Motorsport Civic of Norbert Michelisz were all found to have a rear wing that was not in compliance with the S2000 Kit Variant Circuit Homologation Regulations.
Stewards decided that all three cars will start from the back of the grid for race one.
Castrol Honda Racing principal Alessandro Mariani explained: “The rear wing exceeded the control gauge by the tiniest amount.
"This was a consequence of a production defect and did not give any technical advantage. It was an error by the supplier that was putting in its best efforts to rebuild the cars in a hurry after a number of racing incidents."
- Tiago Monteiro
- Norbert Michelisz
- Gabriele Tarquini