Panzer pics ! Help needed !!

[skalphunter]

I did not know exactly where to post those pics but here i figured are the Panzer guys. I´ve got those pics from a soldiers photo lot. My question is basically what are those guys riding on ?? Any help highly appreciated.
Thanks
skalp

[skalphunter]

pics

pics

[skalphunter]

pic

pic

[Nick Komiya]

That is a Pz I without superstructure used for driver training.

[skalphunter]

Thanks a lot Nick !!
skalp