It is especially important to have tires of the same size on the same axle. Having different size tires on the same axle can cause the vehicle to pull to one side and make it difficult to control. If you must use different size tires on the same axle, make sure that you install them on the rear axle instead of the front axle. This will help to reduce the impact on the vehicle's handling and safety.
Having different size tires on the front and rear axles can also affect the vehicle's performance. In particular, it can impact the vehicle's handling, speedometer accuracy, and ABS (anti-lock braking system) performance. For all of these reasons, it is advisable to only use tires of the same size on your car.