Mosley: 'Gizmo glitches prove teams didn't cheat'

The ban on electronic driver aids, including traction and launch control, was lifted at the end of April and at least one car has stalled on the grid at the three Grands Prix since.

"Last year we received many informal complaints from top teams that one or another top team were using an illegal system of launch control," Mosley told this week's Autosport magazine. "We were told that the proof of such claims could be easily seen when the supposedly illegal cars left the pit lane - as it was obvious from the way that the wheels spun, or didn't spin.

"Now that the systems have been permitted, however, it is evident that those suspicions were unfounded, because so many teams are having difficulty in making their launch control systems work reliably."

The problems have not been limited to the same teams, although a McLaren has been left stranded on the grid at the last three races and both Jordan-Hondas failed to get away at the A1-Ring in Austria. Launch control is not the only bugbear either, as traction control has also caused problems along the pit lane.

"As we have seen," added Mosley, "every single team in F1 has had problems of one kind or another. The same is true of traction control. Yes, the teams have always used very sophisticated engine management systems, but true traction control - with the exception of one particular case, some time ago - was not in use at all, and certainly not last season."