Word on the street was that Detroit was introducing downsized cars for 1977. When NASCAR got wind during the ’76 season, it began exploring the idea of initiating a rule change that would mandate a 110-inch wheelbase chassis, versus the then-current 115-inch design. But once that process began, developmental cost was a concern, prompting Bill France Jr. to issue a statement: “Eventually, we will have to follow Detroit’s trend. In order to curb expenses, the teams will be permitted to use equipment they already have instead of letting new equipment become obsolete in a short time.” The changes Bill hinted at were finally scribed into the 1981 rule book, with one exception: the outgoing cars would be permitted to race at the season opener at Riverside International Raceway (in Riverside, California) on January 11. Bobby Allison won at the helm of a 1977 Chevrolet Monte Carlo. New downsized cars were permitted to compete side-by-side, even though they were not fully mandated yet. Dale Earnhardt finished third in one such Grand Prix, owned by Rod Osterlund.
As much as I am a Ford guy… In this case, I would go for the Monty.