Al Unser Dirt Tracking 1971 Ford Torino

Al Unser at the Nascar Indiana State Fair , first car out for hot laps. Track is prepared and he is warming up on the inside pole. Stock Cars on dirt was hugely popular. Ascot Half Mile was a favorite with the big names A.J. Foyt , Mario Andretti, Parnelli Jones and both Unsers and all the rest.
Strange to see glass windshield and wiper. That deflector must be perfectly placed.