I'm thinking something rather unique. Three motorcycles sharing a single consciousness. They can transform into three separate humans sized robots or combine into one average sized transformer... well, almost average. Even the mass of three motorcycles combined is going to make for quite a slender figure. I see a primary role of scout with a secondary role of skirmisher.

One would perform sniper support for the other two, the second would be the gun nut, while the third would use a submachine gun and sword.

I also say we need a space bridge so we can go back to Cybertron on occasion.