Petrov: Marbles a factor in crash

Vitaly Petrov thinks that rubber marbles on the track may have contributed towards his spectacular exit from the Malaysian Grand Prix.

Source: http://www.iracing.com/inracingnews/formula-one-news/f1-formula-one-news/petrov-marbles-a-factor-in-crash/

Jud Larson Niki Lauda† Roger Laurent Giovanni Lavaggi