Mobile Autobot Repair Bay

Well, it's no Segway, but it'll do.

The M.A.R.B. is a Transformer vehicle found in the Generation 1 continuity family.

A M.A.R.B., or Mobile Autobot Repair Bay, is an extremely versatile Autobot vehicle. It is a hovering vehicle, equipped with sensors sophisticated enough to detect life signs buried below several meters of tar despite four million years of hibernation. It also possesses a high-pressure hose able to blast away said tar, and enough gear to patch into a Transformer's mind and display their memories on a monitor.

Fiction

Water! Water put out fire tar!

Marvel Comics continuity

Ratchet rode the M.A.R.B. through the Savage Land as he attempted to locate the Dinobots. He then used its gear to uncover Slag and tap into his memories. Repeat Performance!

Slag was also involved in the next appearance of the M.A.R.B - he was rampaging through Idaho and Jazz and Ironhide followed him on the M.A.R.B. Dinobot Hunt!