BEIJING, March 12 : A massive start-line crash seems inevitable this season unless Formula One's new engine regulations are tweaked, several drivers said ahead of the Chinese Grand Prix, with some teams' power units now seeing cars pull away far faster than others. Racing Bulls driver Liam Lawson told reporters he had braced for impact after his car struggled off the line at last weekend's Australian Grand Prix and he spotted Franco Colapinto's Alpine rapidly closing in his rear-view mirror. "