Morgan Shepherd had Landon Cassill drive his Xfinity car for him in Miami, but Shepherd says he plans to be back.

"This is 51 years for us," the 77-year-old Shepherd told NBC Sports at Homestead-Miami Speedway, "and I've started on my next. If I can get it in, I'll only be 127 (years old). We'll see where we land."

Isn't it time for retirement?

"Nah," Shepherd said as he sat on the pit wall. "I'm just a servant. I might not be able to help myself but I can help other people with what we're doing. Our charity is 32 years old. ... We'll go as long as the Lord wants me to go."

Shepherd understands that change will come at some point.

"We definitely would be better with a younger driver and build it around him," Shepherd said. "We'll see where it goes. We haven't quit yet."

--- NBC Sports --