Rent-a-car seller

The Garage Owner is a human in Masterforce continuity

You can't cheat an honest man, unless you're Ginrai

MF ep 10 The owner of the Esso station is an old hand at trucks. When one is dead he'll say so, not charge for repairs that won't make a difference. His scrupulous honesty compells him to tell Ginrai that the last truck on the lot is rumored to be haunted, and several renters have returned it early as a result.

This doesn't stop Ginrai (who's wildly pleased with the truck) from feigning a lack of interest to get him to lower the price.

The bizare chain of events which caused Ginrai's Transector to end up in an Esso garage remains a mystery.

From Teletraan I: The Transformers Wiki, a Wikia wiki.