Combustion engines can either be of ingnition type (commonly petrol) or diesel type

The engine size measured by litres. NTMCalc offers below sizes.

<1.4 l

Engine size is less than 1.4 litres.

1.4-<2 l

Engine size is from 1.4 litres up to, but not including, 2 litres.

≥2 l

Engine size is 2 litres or bigger.