Post game vehicle spawns decreased on purpose?

I’ve finished the game and am playing through side missions and whatnot, including getting missing vehicles upgrades, but the vehicles spawn like one of 2 then nothing if they even do that

I think there may be more spawns in specific areas related to specific vehicle-related missions. Generally, though, it seems to be more a case of knowing where the spawn points are and deliberately triggering them.

I have gone to every map multiple times and just drove around for a while and got one vehicle to pop up if any.

Try looking specifically for the garages with a black opening where you’d expect to see a door or interior texture.

What vehicle types are you looking for specifically?

At the moment the flame boost