Is it illegal to lower your car in Australia?

AutoExec Summary
Lowering your car can improve handling, but there are legal limits and rules to follow. The acceptable level of ground clearance is 100mm, and modifications must not exceed +/-50mm. Different states have varying laws, so consult local regulations or a mechanic. Lowering can enhance driving experience and appearance, but may void warranty. Sportier cars are commonly lowered, with methods like shortened springs or altered suspensions. Legal guidelines exist for ride height adjustments, with certification needed for certain modifications. Airbag suspension is permitted if certified. Ensure compliance with laws when lowering your vehicle.
Brands mentioned: Australian Design Rules, National Code of Practice for Light Vehicle Construction and Modification, Victorian Vehicle Standards Information, NSW Light Vehicle Modifications.