After a parachute mission, I got back to free roam and while I was driving with my own Entity XF on the highway, I saw some stranger's Entity XF driving right next to me.
I first thought it was a player who removed his blip, but it wasn't.
The driver was rather aggressive, I couldn't make him stop.... well without a mess.
Then I thought it was Madrazo, but that would've been too weird, so my second guess was a mechanic.
Nope. It was just some random NPC!
I thought that this car wouldn't spawn anywhere