Just imagine paying for a car with something like an SJ credit card and get the motherload of priopoäng!

(For the non-Swedes, SJ is a train company with a version of a frequent flyer miles point system, and they like most of those have a credit card where every SEK spent earns you 1 point. A trip from Malmö to Stockholm (600km, ~4,5h) can be bought for some 12-16000 points. A new car costs anywhere from 300000 sek up to a million and beyond.)