What is the difference between a car’s kerb weight and maximum authorised mass?

<p><strong>Kerb weight broadly describes a vehicle in running condition, whereas maximum authorised mass is the permitted loaded mass including vehicle, occupants and cargo.</strong></p><h2>Why this matters</h2><p>These figures answer different questions. Kerb weight can help compare vehicles, but towing, licensing and payload decisions frequently rely on plated permitted masses, not an advertised empty-weight figure. Equipment and model variations can also change actual weight. A driver who loads a roof box, bikes and several passengers may reach a limit without realising it.</p><h2>What to do in practice</h2><p>Find the manufacturer&#x27;s weight plate and vehicle handbook. Check the maximum permitted mass, axle limits and towing figures separately, and allow for passengers, luggage and fitted accessories. Where necessary, use a public weighbridge.</p><h2>Important distinction</h2><p>Do not use a brochure kerb weight as a substitute for the legally relevant plated limits.</p>