Earlier quoted context omitted.
Wow Greece has a limit of 500 euro, but: "There is no cash limit for car purchases" wth? EDIT: Also this something that I didn't know about the UK > With regard to the change, there are unlimited payments of £ 5, £ 2 and £ 1. Coins with a face value of 50p, 25p and 20p can pay amounts up to £ 10, with 10p and 5p up to £ 5 and with 2p and 1p up to 20p.
The most corrupt countries tend to have the worst limits. In greece for example real estate sellers will try to officially declare a price much lower than the real one to the taxman, taking the rest in cash under the table. That's why there are government-appraised, official "objective" prices according to which real estate is taxed
Which often causes problem when the cars is defective and seller goes "sure, I will pay you back in full, the amount that is on documents". And buyer got no recourse for that.