To learn a vendor's true value, it's best to survey disengaged non-users as well as users and ask three simple questions.

Includes 30 of the biggest firms, plus special deals we've found or arranged. See who we do and don't compare.

There's a handy step-by-step guide on how to deal with "fines" - which aren't technically fines - if you want to dig into that. And according to data we've just seen from the RAC, there is a ...