Transformers and Action Force

Marvel U.K. ran an Action Force and Transformers crossover story called Ancient Relics in 1987.
Written by Simon Furman and drawn by Geoff Senior part 1 featured in Transformers 125 with the other four parts featuring in Action Force 24-27. For any Americans out there, Action Force was the U.K. name for G.I. Joe back in the day.

It featured a Marvel UK created character called Centurion...

And some great scenes such as Megatron throwing around puny human tanks...

and a Grimlock vs Megatron rumble.

Most issues of Action Force weekly also featured classic Transformer toy ads on the back cover.

For more on the Ancient Relics storyline go here http://tfwiki.net/wiki/Ancient_Relics!

And for more on Centurion http://tfwiki.net/wiki/Centurion_(Marvel)