Truth spoken above. Most Jr. Stockers have the factory horsepower lettered on the car somewhere, so the engine that they ran is easily determined. Also during the horsepower wars cars were moved down is class each year as more potent cars were built and classed.
Aston - Martin did something very similar about 28 years ago, U.S. regulations would never allow it here. Sanction II Zagatos In 1988, 4 unutilised chassis numbers were put to use. With the approval of Aston Martin, four DB4 chassis were appropriately uprated to GT specifications. These chassis were then sent to Zagato's Milan workshop to be bodied like the originals, with a smaller oval grille, sans the stock DB4 GT's rear tail fins, and with a smoothed out rear end. To familiarise the workforce with construction techniques of the 60's, an original DB4 GT Zagato was sent along to be dismantled. These 'Works Approved Replicas' were known as the Sanction II cars. They were outwardly identical, but several changes were effected in the interest of better handling. Each of these cars sold for over $1,000,000. Differences to the 'originals' include a larger engine capacity, increasing from 3.7 litres to 4.2 litres and a smaller wheel diameter from 16 inches to 15 inches. The first of the four GT specification rolling chassis was delivered to Zagato in January 1989 and the fourth in April of the same year. With all four being completed in July 1991. All four cars were then given their own chassis numbers appropriate to the 1960s.
It's been over 30 years ago, Kingswood was probably the right name. That wagon had all the bells and whistles, tilt wheel and all. The AM-FM stereo went into the Camaro too! The Camaro ran better than the wagon !
All of the US big three built similar cars back then, I once owned a 69 Chevy Caprice Estate with a 390 HP 427, complete with hidden headlights and the wood grain trim. Very rusty, I pulled the engine and TH400 transmission and put them in my 69 Camaro.