Al Unser Sr
![When a Williams found its way on to the grid of the Indy 500](https://f1i.com/wp-content/uploads/2018/05/Indy-1981-P17-300x180.jpg)
When a Williams found its way on to the grid of the Indy 500
The 65th running of the Indy 500 held back in 1981 saw an interesting and somewhat familiar-looking car...
The 65th running of the Indy 500 held back in 1981 saw an interesting and somewhat familiar-looking car...