Vehicles tend to spawn in the ground.

[AdamTaylor]

Happens all the time with parked vehicles.

 

[Vitamin187]

Just hop into it and it will pop back up on the road, that is what I did.

 

[wsshbr]

Having the same issue, funny.

 

[Rhyzur]

Interesting. Mine usually just come out of nowhere and run me over.

 

[AdamTaylor]

Just hop into it and it will pop back up on the road, that is what I did.

Yes, that usually fixes it (except when your car suddenly explodes). The issue is it shouldn't happen in the first place.