In 2006, VWengineersrealised that a newdieselenginethey had designed would not be powerfulenoughto satisfycarowners and notgreenenough to pass muster with regulators.
"When you look to the German car manufacturers now, they are fighting against each other with the biggest statement, with more horse power, and these days a dieselenginecar is as powerful as a petrol car, " Saab Europe's Claude Makowski told BBC News Online.