Standard fitment for the Senator is a 175HR14 radial tyre, with an optional 195/70HR14.
The Monza was fitted with a 175HR14 with an optional 185/70HR14, but also got the option of a 15-inch wheel, with a 205/60VR15 tyre.
The Senator was an excellent large saloon, and the Monza coupe based on it was a handsome cruiser. The GSE option was even sportier.