All three, A1, A2, A3, tow extremely well. I've hauled 3 or 4 2000-3000lb loads of gravel in my A2 and A3 with a half-ton tow vehicle, smooth as butter.
On my last gravel haul, I picked up an A2 from a GL lot, and on the way home, figured what the heck, I'll stop and grab another load of...