The R18 e-tron quattro, now three times winner at Le Mans, actually uses the Williams Hybrid Power flywheel system — so it might not have F1 pedigree, but it ce

The R18 e-tron quattro, now three times winner at Le Mans, actually uses the Williams Hybrid Power flywheel system — so it might not have F1 pedigree, but it certainly has top-level motorsport pedigree.