There are differences in tyre sizes for the BMW Z3, based on engine/wheel packages and model years from 1996 to 2002. Also, some variants have different sizes for the front and rear tyres. To change tyres, use Tyres.co.uk option only after you have determined the correct variant. Look at the sidewall or enter the registration as an assumption of a tyre size is not correct.
For tyre specifications of the BMW Z3, look at the placard on the driver’s door. If the tyre specifications for the front and rear tyres are different, they will be shown separately. Each tyre’s sidewall has the tyre size, load index, and speed rating printed on it.
Some models of the BMW Z3 are rear wheel drive, and some variants use wider rear tyres. Therefore, when replacing tyres, pairs of axles are used instead of moving tyres from one axle to the other. Replace pairs of tyres on the same axle, where the same make and tread pattern are used, and only where there is uneven tyre wear on the vehicle.