Of course there is ebay.de, but is there some euro equivalent of like autotrader or cars.com? I found autoscout24.de, is this the best place?

i bought my S4 off mobile.de 2 months ago.

But definitely only buy a car you checked out first, don't pay money up front etc. etc.

Also, how many km's

dealer was asking 10.000. Ended up paying 9.500, including a set of brand new winter tires. it's a '99, but 2000 model year. 173.000 km's, 1 previous owner (a woman), all maintenance done at original dealership, leather, heated electrical seats, sunroof, carphone etc.etc.