Fixes a small bug with out of town vehicle spawning

I stumbled upon this small bug while messing around with some other things, it seems that a few vehicles in the list that is called for spawning vehicles out of town asked for values that exceeded the generated number and would never spawn (I did check for it by generating a bazillion roads, and they never appeared)

Ohh also, I cheated and added the Rara to the spawn list (because well, thats what I originally wanted to do).