How many Voltrons were there?

I had a weird dream last night which I don't remember except that I woke up this morning trying to remember what the third Voltron looked like. "Third Voltron?" you ask. I'm sure your remember the Voltron that was made of five lions, right? Maybe you remember the Voltron made out of 15 cars, boats, and planes (or maybe not, the cartoon was only shown briefly). But a third Voltron? I couldn't for the life of me picture it, but I was sure there had been one.

Of course, I thought that I might have been confusing Voltron with Robotech, which of course did have three completely seperate series. Anyway, I looked it up on the Internet. I found lots of references to the Lion Voltron, which was from a Japanese series originally called "Go Lion!". After some simple digging, I found references to the Vehicle Voltron, which was from a completely unrelated Japanese cartoon called "Dairugger XV."

After some serious, serious digging I found that there was indeed a third Voltron made up of three robots. Here's a pic:

The series was never shown in the US, but somehow my unconscious had latched onto it and wouldn't let me forget.

And, in case there's a quiz, the Vehicle Voltron is Voltron I, the Robot Voltron is Voltron II, and the Lion Voltron is Voltron III. This is all extremely important, and I expect you to be grateful that I made you aware of it. :)