Maserati's large and often updated Biturbo car family had several tyre fitments over the years. A summary is below.
E, E II, ES & Si models (1983 to 1987) were fitted with a 195/60VR14 radial tyre.
222E (1988 to 1991) - 195/55VR15 radial tyre.
222SR (1992 to 1993) - 205/50VR15 radial tyre.
222 4v (1992 to 1993) - 205/45ZR16 front and 225/40ZR16 rear.
425 (1983 to 1987) - 205/60VR14 radial tyre.
430 (1988 to 1993) - was fitted with a 205/55VR15 until 1991, and a 205/50ZR16 from 1992.
Spyder (1984 to 1987) - 205/55VR14 radial tyre.
Spyder i (1988 to 1990) - 205/50VR15 front and 225/55VR15 rear.
Spyder 3 (1991 to 1993) - 205/55ZR16 front and 225/45ZR16 rear.
The Biturbo concept of a small, sporty saloon bringing performance and luxury to a larger market was a good one, but was occasionally let down by quality control.
The basic architecture of the Biturbo was at the core of Maserati's range for many years, no matter what the name of the car was. They have their own listings in this catalogue.