Combinators: Project Duotron

 Combinators: What if Creator sets could combine into fighting mecha WITHOUT dismantling them? 

Duotron - Combinator pairs capable of combining to form one super-robot
Team Yellow - Land/Sea - Land is represented by futuristic drag racer.  Sea is represented by futuristic mini submarine.
Team White - Land/Space - Land is represented by futuristic truck.  Space is represented by light fighter.
Team Blue - Land/amphibious - Land is represented by a futuristic trike.  Amphibious is represented by a futuristic hover craft.
Team Red - Land/Land - Team red is made up of two land based vehicles, however one is an explorer type intended for lunar exploration and the other is a hover tank.