Germany's Auto Motor und Sport reports that a number of Formula 1 teams are pushing the FIA to delay the introduction of F1's new engine regulations. The switch from normally aspirated V8s to smaller-displacement turbo V6 powerplants is currently scheduled for 2014, but midfield teams as well as engine manufacturers reportedly are concerned about rising development costs.

"It is being heard from sources at (engine suppliers) Mercedes, Ferrari and Renault that the development of the turbo V6 is more expensive than expected," said the report. "Since no limit for the engine lease costs for 2014 has been set, the teams fear that they will incur additional costs."