I've moved this to the general section: while it's about online racing, it isn't about organized GTP racing.
Banning trucks was a bandaid solution to the problem with rammers. I don't know if you've been racing online a lot since the initial ban, but there's still plenty of dirty drivers. Banning unusual vehicles punishes everybody that aimed to use them, regardless of intention.
I've just had a few races in the ABC lobby with the new truck, and it's been fun. I give faster classes a wide berth when I'm not in the middle of a turn, and I don't block on the straights where the truck gets murdered by the rest of B class. It's brakes are far better than you'd imagine, so you need to remember that when behind another car heading into a braking zone.
Unfortunately, the idiots ruin it for the rest of us.