I was looking at ORION's stats and I discovered that the most driven track at Blackwood is BL AutoX.

Why is that a bug?

It probably was when banger racing on those little ovals was popular.

I actually have that at pos 1, too; 2758 laps.

Well, BL autox doesn't exist, it's Car Park

Oh, well, ok then.

What I don't understand is that I don't have any laps counted down for car park nor au1/2, whereas I used to race a lot on customised layouts on these areas.

That's probably because it isn't a true track, only an area with a layout.