Powerdasher is an Autobot in the Generation 1 continuity.

Powerdasher is either a single Autobot who is constantly evolving between entirely different forms (which include a car, a drill vehicle and a jet) or three separate but unnamed individual Autobots.

Powerdasher recently came to Earth to aid the Autobot cause. He is friendly and cheerful, and can operate at various levels of kinetic energy - whatever that means.

Fiction

Dreamwave Continuity

The Powerdashers were placed aboard the Bumblebee-commanded ship Orion, and were activated to repair it after it was shot down on Earth by Sunstorm.

[Note: The car-form Powerdasher was on the cover of the second Generation 1 miniseries, but did not appear anywhere in the story.]

Toys

Generation 1

Powerdasher (car)(Mail-away, 1984)
Powerdasher (jet)(Mail-away, 1984)
Powerdasher (drill vehicle)(Mail-away, 1984)

Powerdasher was only available as a mail-away premium from Hasbro for $3 and 2 Robot Points. However, you could not pick which version of Powerdasher you were sent.

All three Powerdasher toys had pull-back motors in vehicle mode, which allowed them to roll across flat surfaces.

Trivia

The Diaclone names for the toys that became Powerdasher were "F-1 Dasher", "Sky Dasher", and "Drill Dasher". These names are sometimes used by fans to refer to the individual Powerdasher toys.