not a dome, the dome zero (see pic below). It's a car.
A rather cool one IMO.
There's even a bit body due out (if it's not already out) that looks really sweet.
As far as engines go I haven't seen any...though honestly I've never really searched for any. I'll look around and see if I can find any. Are there any in particular you want? (and engine #/designation would help a lot too if you have it hehe)