When multi-tile enemies become a thing I want to see blob possessed vehicles scattered about the world. Most of them will be large enough, fast enough, and tough enough that fighting them without a vehicle of your own is an arduous task.
Herbie: Low-tier, early game spawn. A living Beetle. Not innately hostile but not hard to aggro.
Christine: Indiscernible from normal cars that spawn in garages appended to houses. Always spawns with incredibly useful car parts and turns hostile if you attempt to remove one.
Thomas the Tank Engine: The childhood icon, except now it wants to kill you.
Thomas the Shank Engine: Someone welded long spikes to this model before it came to life. It enjoys ramming you at high-speeds.
Thomas the Gank Engine: Always spawns in large groups.
Thomas the Dank Engine: Someone was hiding a large stash of marijuana in this model’s firebox before it came to life. Incredibly difficult to aggro.
When that’s done, there will be a new Gods of the Cataclysm Challenge: to suplex a train.