Gaining an advantage
Drivers must race ‘within the lines’ or, as it is commonly referred to, ‘Track Limits’. The car can cross the track limits as long as part of one wheel stays on the line.
On a fast-sweeping In formula 1, a corner is much more than a turn on the track, it is a considered and deliberate... There's more..., there may be an advantage in running faster and allowing the car to go wider than the track limits. On tight corner, there may be an advantage by stepping over the track limits and cutting the corner.
If two drivers are fighting for position, with one of them leaving the track during the move and rejoining in the lead, it is deemed that he has gained an unfair advantage. He must immediately ‘give the position back’ by letting the other OK, so we all know what the driver is, right. I've always liked the description that F1 drivers are like... There's more... pass.
The battles must be won ‘on the track’.