Is #4 a Komatsu?
Not from them not from there.
A Kawasaki?
with 'not from there' I meant not from Japan at all.
#1 must be a Skogsjan 2000 Soft.
Right!! The owner was a co-worker of mine when I was working at Frankfurt airport. A fascinating mashine when it wasn't out of order. Just like a dinosaur when it rised in the morning. Unfortunately it was broken almost all the time...
After Skogsjan was overtaken by Caterpillar the project was abandoned. This prototype survived and was sold for a bargain to my colleague who gives it a lot TLC.
http://www.youtube.com/watch?v=JGCVsQrgV78#4 is German, is it not?
It is!
I've seen #10 before. If I just knew where...
Was it alternatively powered like fuel-cell?
No,there's nothing special about that plain engine..