What is this shenanigans..

Haven't been on gta5 online in quite awhile, and just logged into my old account... First thing that happens when I drive out my garage. You guessed it. Ended.. Blown up.. By a fucking flying wtf. Is it a motor bike? A jet? One of those old jet engine heaters we use up north to heat our barns? Wtf are these players riding around on blowing up any and everybody that doesn't have a tank.

Also, how do I get one of these said unknown contraptions. Background info, I'm rank 101, got a couple millie in thee ol clinker. I got offices and highrise an all that.