A bit on the "pricey" side, but it has a distinctive appealing:

http://www.torro-shop.de/product_inf...c5dca5cb08316d

I'm going to wait for someone to buy it and see what type of tracks carries, from the pics it seems vinyl or soft plastic tracks....in the specs they say "Fahrzeugrahmen und Laufwerk fast komplett aus Metall!" is that undefined "fast" (almost) that makes me doubt.

Regards
Uhu