I have slid a F350 Crew Cab Dually 4x4 before. My friend didn't think it was possible but if you get the boost to come on hard in the middle of the apex in the rain, the ass will come right out
Needless to say he was hanging on for dear life lol.
I have tried with a 2002 Mustang GT and it just didn't feel right, can't explain it. I have also done my GMC 1500 pickup the past few days in the rain, again, something doesn't feel right. I was going to attribute it to the solid axle as well, until I read above posts. Maybe because no lsd?