any vehicle exempted from vehicle excise duty by section 4(1)(h) of the M1Vehicles (Excise) Act 1971 (road construction vehicles) F1section 4(1)(i) of that Act (gritting vehicles) section 7(1) of that Act (vehicles used only for passing to and from land in the same occupation) F2or section 7(3) of that Act (snow ploughs etc.);

a special machine within the meaning of Schedule 3 to that Act;

a road roller.