North vs South: which really is cheaper? - Local derby

Regardless of which end of the country you're buying in, there are sizeable differences between similar cars for sale in the same region.

We found that some dealers charged as much as £2000 more for a BMW 3 Series than a rival. Even car supermarket prices varied, with a difference of about £1700 on a Nissan X-Trail.

Optimistic private sellers were the worst of all sellers for over-valuing their vehicles, with some charging as much as £3000 more than a similar car elsewhere.