[Unreal]

It's actually GTOman who put in a proxy bid. Then every time MC29 tried a higher bid, the computer automatically bid the next increment for GTOman. Once MC29 exceeded GTOman's max bid, he became the high bidder. Notice that GTOman then put in a higher bid, and MC29 snuck up on him again.
Once the bidding is over, and you can see the actual bids, it's easier to understand. But you know two things.... GTOman's tactics are to put in a significantly higher bid, and MC29's tactic is to try to "just" overbid the current high bid. Oh yeah, we know one other thing...both guys want the car!
Ain't ebay fun!!