There was a thread discussing Fleetwheel Cruiser, but I wanted to make a topic dedicated to all of the vehicles.
Several people hopped on this one because it's relatively cheap (for shops), can attack by itself, it's bigger than Slash Panther (with trample), and it's easy to crew.
I'll not go into much on this one since it was covered in the other thread I feel.
This was also one people were considering at the time since it functions as removal, has flying, and crews for relatively cheap. Sadly can't be crewed by Phyrexian Revoker, but it's not too tough to get this bad boy rolling.
The Copter really stands out to me; it's cheap, has flying, a good body, lets you loot, and only crews for 1! You can jam your thopter tokens in there from Hangarback Walker. I think this has a fairly decent shot of at least making it into testing. Really impressive card in general (imo).
Lastly, this one was spoiled very recently, and it looks promising. Similar to the Cruiser, but it's cheaper, and bigger when attacking. It doesn't get to attack by itself sadly, but it might be worth it.