Tyre sizes varied from 15-inch P205/65 for the Commodore Executive, Acclaim and Berlina (the latter, and following models, with alloy wheels), to 16-inch P215/60 for the Calais and P225/50 for the Commodore S, and the largest P235/45 on 17-inch wheels for the Commodore SS.
The Commodore model came equipped with tyres of varying sizes, from 15-inch P205/65 for the Executive, Acclaim, and Berlina (with alloy wheels on later models), to 16-inch P215/60 for the Calais and 17-inch P225/50 for the S-class Commodore. The largest tyres were found on the SS model, with 17-inch P235/45.