[pqs]

I'm an spaniard living in Spain. Yes, there is too much black market economy here, but I've never seen it with cars. People here usually don't pay VAT to the plumber, the electrician, etc.

EDIT: I'm talking about new cars. I guess the used car market is mostly black, but I don't know as I never bought or sold a used car.

[Adirael]

On used cars is mixed. You need to pay taxes based on sell value, with a lower limit based on the blue book equivalent we have here. People just declare a bit less than blue book value and pay the minimum.

But yes, most of Spain's submerged economy is via services without invoices (no VAT, no IRPF).

[maninalift]

yes I meant used cars. I'm the sort of cheap-ass who wouldn't even consider buying a car new.