Hägglunds

Swedish made tracked amphibious vehicle, used by the military, now sold to the public. Here is a website for info.

Here is a promotional clip (the teambuilding almost cracked me up):



And in action as a tsunami rescue vehicle:

Argo ATV

Sweet little all terrain vehicles in 6x6 or 8x8 with option for being amphibious!

This clip in black and white:



Magnum version (8x8)



And playing on ice!

Amphibious car

Sweet - I want one! Would be fun scaring people by driving into the sea :)