The car has an approval for the complete vehicle. This means that there are certain combinations of wheels and tyres that are approved.
For information about approved dimensions, see Wheels and tyres - approved dimensions.
Wheels (rims) have a designation of dimensions, for example: 7Jx16x50.
| 7 | Rim width in inches |
| J | Rim flange profile |
| 16 | Rim diameter in inches |
| 50 | Off-set in mm (distance from wheel centre to wheel contact surface against the hub) |