looking for an old anime

I've just been trying to find an old anime I would watch as a kid...it was about these schoolkids who were transported or smething into a weird prehistoric island....there they even had some fancy technological equiment like some huge cars disguised as dinosaurs and stuff....kinda like dino-cars...i'm just wondering if anyone knows the name or what not......

After a bit of searching around the net, I found something that sort of matches what you described, could this be it? :?

Anime Bargain Bin Reviews - Return of the Dinosaurs aka Kyoryu Tankentai Born Free

ah thx for lookin that up for me....i also had to search extensively but eventually i found it..... it was this one :

Kyouryuu Boukenki Jura Tripper

with the the english title being.. Dino Adventure Jurassic Tripper..i donna if anyone has seen it...probaply not seeing as it was made with european colleboration...the story and everything, only the animation was japanese i think

anyways thx again for your help