Fernando Alonso backs 'zero tolerance' on track limits in F1

The Spaniard had his time in Q1 deleted for leaving the track at Turn 11 on his first run in qualifying - even though he had only done so because he slid wide as he closed on slower cars in front.

But Alonso says he prefers it when the rules are clear, as they were at the recent Fuji WEC round when his car lost pole position for abusing track limits.

"I prefer when it's zero tolerance," said Alonso, when asked for his views on the Mexico incident.

"In Fuji we crossed the white line by one centimetre and they delete the lap time, and we were not on pole position because of that.

"We didn't gain time because it was a correction like here - you have a big moment, you end up off track, and they delete the lap.

"But the rules say if you are over that red and white line they delete the lap.

"They don't consider if it was a mistake, a correction, or a pure gain in time, it's just the line is there, and if you cross the line they delete the lap.

"They do it in other series and it works fine, so I'm happy with how it works."

Alonso recovered from the Q1 incident in Mexico to qualify 12th but his hopes of finishing in the points were wrecked by a freak incident when his car was damaged after being hit by debris.

"We were unlucky with some of the debris from the Force India in front of us landing in our car," he said.

"It's a one in a million possibility to have a DNF, but it happened.

"Even if now I feel a little bit sad, the day in general was very emotional and magic with all the support and all the fans, so I think overall it is going to be a good memory from this Sunday even with the retirement."