I am from croatia ex yugoslavia and we have tons of R4 driving on the street sinc they were produced til 1991/1992 in slovenia you can buy an R4 in exelent condision 1991 GTL 1.1L 35hp i think for 500 eur registerd and for bit more of money you can get an R4 with butan and it spends cca 3 eur per 100km .Wisit croatia ower somer we have beaches and take some parts for R4 . :P