I beg to differ with B prices in Spain, you may possibly be correct with rust/condition etc, but being lhd abroad keeps the B price healthier than being cackhanded in the UK. Plus it's generally true too that ALL used cars in Spain (lhd) are forever more expensive than what we Brits are used to.
I expected all s/h cars to be generally keener priced, they're not. As expected though ex UK RHD stuff in Spain plummets in value, cos as in England who'll pay a premium for a rhd in a lhd country with the added inconvenience and extra ins. ???
I rest my case M'Lud