I'm trying to remember the name of a toy range that I had when I was younger, I remember them being particulay had to find at the time so I don't know how popular they may have been.

It was a Scifi themed one where you had to assemble vehicles from large plastic blocks, but you also had various cockpits and other specific details as well. Each model came with a little rubber pilot about 3cm high.

There were to factions good/bad with the good guys being human with their vehicles being made of grey and dark blue blocks, while the bad guys had red and grey vehilcles and were not human, I think they were alien.

Looks like my post has generated a fare amount of interest but no answers, fortunatly I was finally able to find a friend of a friend of mine who remembered them.

They were called "Legions of Power"