This has been such a head scratcher... hoping someone can help?

I had the UK VHS of Guyver episode one, and before it there were the usual Manga trailers.. . I remember Demon City Shinjuku, Devilman, and I think Cyber City 808 was one of them.. . but there was a THIRD ONE which I cannot place for the life of me!! From what I remember it had a man and a woman fleeing from a pursuing robot with wheels across the countryside in a jeep and I do remember them getting across a large city bridge at night and the guy in the jeep throwing a can of petrol behind them, shooting a gun at the can and it exploding, thus bringing the robot to a halt on the bridge. The robot had a kind of Terminator-esque scanning system.

God... I wish I could remember the name of it. Anyone know what manga I'm talking about??