To what extent may tire size be modified according to inspection standards?

The correct answer indicates that tire size can be modified until contact with the body occurs. This allows for some flexibility in tire size modifications while ensuring that the vehicle remains safe and functional. Maintaining clearances is essential; tires that are too large can protrude and lead to contact with the bodywork, which can cause damage to both the tires and the vehicle.

The reasoning behind this modification allowance is safety and performance. Tires that are excessively large can interfere with vehicle operation, especially in terms of steering and suspension dynamics. Therefore, as long as the larger tires do not result in contact with the body of the vehicle, this modification can be deemed acceptable under inspection standards.

Options suggesting slight modifications or no modifications at all would not take into account the practical aspect of customizing vehicles for performance or aesthetic purposes, as long as safety parameters are adhered to. The option about fitting only larger rims also fails to address the essential factor of tire clearance in relation to the vehicle's body.