I had a lot of fun driving race cars, but it wasn't my No. 1 priority.

Driving race cars was an avenue for me to learn how to build my own car, and that was my ambition all along.

I've had a good run. I've built a lot of things that work and a lot of things that didn't work.

It's a massive motor in a tiny, lightweight car.

I've always been asked, 'What is my favorite car?' and I've always said 'The next one.'

In 1964, when Lee Iacocca said, 'Shelby, I want you to make a sports car out of the Mustang,' the first thing I said was, 'Lee, you can't make a race horse out of a mule. I don't want to do it.' He said, 'I didn't ask you to make it; you work for me.'