Hmph, not really the case. A hellion is some sort of unit in the game. I looked it up on a Starcraft 2 wiki, and this is what I found out:
"...The hellion is a high-speed raider built around a lightweight four-wheel chassis. Hellions are capable of causing damage disproportionate to their size, particularly against enemy infantry, thanks to their heavy infernal flamethrowers. Additionally, their remarkable acceleration allows for improvisational tactics in the field. Some hellion drivers will deliberately outrun their enemies only to turn and attack when they have reached maximum range." - Starcraft 2 Wiki
Source: Starcraft 2 Wiki
Sweet! I'm sure the game designers had our team in mind when they developed the unit. But please, no SC2 geeks commenting saying anything otherwise (Mr. T just gave me a lecture on their actual capabilities/usefulness in the game). If it's in the wiki it must be true!