Surely it invalidates carries more bikes than I own and wafts around the country and probably also makes about 185bhp and 370lb/ft of torque if the breakdown is engine related?
It still carries more bikes than I own, as long as I push it.
(OK, actually, it’s not that broken down- it drives, it just smokes like a mother****** so I’m not driving it til that’s fixed as I think it caused the smog in London)
But! The point was that cars that are cheaper to tax don’t have to be new, expensive, small, gutless or boring.