"It was a good run, not a great run."
Ambrose scored his career-best finish while also annoying several drivers, including Busch and Boris Said.
After an accident knocked Said out of the race with 28 laps remaining, Said pointed angrily at Ambrose.
"It's going to cost him a car one day -- I'm going to go over and apologize to his team (now for that),"
Said explained afterward. "He either made a mistake or he's incredibly stupid, and I don't think he'd make
a big mistake like that. I wouldn't expect it from him.
"I'm not going to get mad, I'm just going to get even."
Ambrose publicly apologized for the accident with Said. "If I could take it back, I would," Ambrose said.
"I didn't mean to get into Boris. He's a great racer. I've idolized him in the past and still do. If I
could turn the clock back, I would. It's just hard racing up there."
Carl Edwards finished fourth, Patrick Carpentier was fifth and points leader Clint Bowyer sixth. Bowyer
leads Edwards by nine points and Busch by 66.
Busch had not planned to run the entire season but now has won three consecutive events.
"The consideration is there, but still it's one round and a race-by-race deal," Busch said. "I'm not going
to let anything out of the bag quite yet -- I'm not even sure if there's anything left in the bag to let
out."
The race was the fourth consecutive trip for the Nationwide Series to Mexico City. Although the crowd was
the weakest -- the announced attendance was 57,324, nearly 15,000 fewer than last year and nearly 37,000
fewer than the first race, both NASCAR officials and those from race promoter OCESA said before the event
they will begin negotiations for a sanction agreement for the series to return next year.