Sub-4 metre car

A sub-4 metre car is under 4,000 mm long. Under GST it counts as a small car, taxed at 18%, if it also has a petrol, CNG or LPG engine up to 1,200 cc or a diesel up to 1,500 cc; larger cars pay 40%. That is why many Indian cars are exactly 3,995 mm long.

The tax break makes sub-4m cars cheaper for their size; note that axler8's 'compact SUV' group runs up to 4.4 m, so it is wider than sub-4m.