The Diaclone Dashers!

Originally available in the pre-tf line, they were released both in Japan and Italy. There were 3 of them: Drill, Sky, and F-1(or if you prefer the Italian version, Zetar, Cromar, and Aragon).

Eventually released in the US and other countries as 'Power-Dashers' thru a mail-away promotion (money plus robot-points, like Reflector and the Omnibots, Dashers were only available thru the mail), they were given a few cosmetic-changes. Drill-Dasher, for one, had his pointy nosecone shaved down (for safety purposes, I suppose....)

Diaclone Doublechangers: Also known as Omnibots in the usa :-) Like the powerdashers, they were mailaway promos. But they had a pre-tf beginning: