Certainly before Schumacher did another famous cheat - turning up for the start of season weigh-in with a helmet so full of lead he couldn't hold his head up with it on.
That's the first time I've heard this.
Any proof for this claim?
How would a lead-filled helmet assist a driver? The amount of force on their necks with the extra weight would be unbearable. Pray tell and share the info with us if you can
Michael Schumacher, Jenson Button. One of these drivers was never found with an underweight car.
Clue: he's German.