Yeah, I was thinking that the guys who are adding "anti-lag" to their street cars probably first encountered it watching WRC. Or maybe touring cars.

What's crazy to me is I hear it on cars that aren't even turbo - they're just running super rich with no muffler/resonator, so it pops/burbles more than normal. Can't be good for the car (the catalyst in particular, assuming they've bothered to keep it).