Ray Lamm's photo of car owner Al Rudd's #90 Truxmore Chevy driven by son Ricky Rudd in 1979 NASCAR race.
Stock Car Racing History
Just to keep stirring the pot, here's a front and side shot of a street 1979 Ford Granada to compare with the #90 in the photo:
The #90 may indeed be a Monte Carlo as y'all say, but it sure appears to have a Ford Granada grill that looks identical to the street version above.
And I definitely say Racing Reference and Ultimate Racing History are both wrong calling the LG DeWitt/Joe Millikan #72 car next to Ricky a Chevy. I say it is an Oldsmobile 442 like LG ran a number of places in 1979.