The only AWD I have seen spining all tires was a Mitsu EVO with somo mods and NOS fron the very Start.

I guess those have a regulator of some kind to send traction where u want it cause the fron tires spinned more that the back ones.

I'm finishig an AWD truck with almost the same mods as the 2wd, I'll tell you guys if it spins or not.....even with 200HP shot on off the line. Something have to break!!!!!!!