Amy Earnhardt drives the pink pace car at Martinsville Speedway (AP Photo/Steve Helber)
MARTINSVILLE, Va. (AP) -- In Dale Earnhardt Jr.'s final start at Martinsville Speedway, an Earnhardt led the field to green.
His wife.
Amy Earnhardt drove the pace car to start Sunday's race as a nod to the retiring driver. The couple is expecting their first child, a daughter, next year. 
Earnhardt said before the race he was excited for his wife, who was also able to honor her mother as a breast cancer survivor in the special pink car. 
"I don't know who was more excited about that, me or her," Earnhardt said. "She asked me about it and said 'What do you think?' I said 'Man, if you get an opportunity or get asked to do that, you have to do it.'
"I told her to go for it. She's excited. It makes me happy that she even thinks it's cool."