I've edited Blaster's post with my ideas. Cars
apc --- APC from TBOGT
bobsleigh --- there'll be snow in mountains, maybe a bobsleigh track too
brzbus --- Possibly Brazil Bus (brz = Brazil, as in Max Payne 3 vehicle lines)
car_brzhatchplc --- Hatchback car from Brazil, Max Payne 3
car_brzsedanplc --- Sedan car from Brazil, Max Payne 3
car_brzhatchjnk --- Hatchback car junk from Brazil, Max Payne 3
car_brzsedanjnk --- Sedan car junk from Brazil, Max Payne 3
cs2000 --- Must be a sports car with this name.
dune --- Dune from SA makes a return
hauler --- Sounds like a truck name (haul, hauling, RS Haul)
prairie --- Sounds like an elegant, expensive car name
rhino --- OH BOY OH BOY OHBOY OHBOY!
seinove --- Italian car (sports car?)
skimobile --- there'll be snow in mountains but why's this here? Because we can sit on it. yeah!
snowplough --- f*ck yeah, so there will be roads in snowy mountaintops. Bikes
enduro --- Dirtbike
faggio2 --- New design Faggio
spike --- Dirtbike Helicopters
autogiro --- That lil' chopper from VCS makes a return.
hind --- Military chopper.
napalm --- Military chopper? (with napalm???
heli_vcpf --- VC = Vice City? Planes
gunboat --- Boat with guns, you've never guessed it!
sabs_boat --- Sab's boat? Who's Sab?
whaler --- Whaler holy sh*t, sounds like a big ass ship that they hunt whales with.
tinny --- Tiny (?) boat
contbo --- Container Boat???
smug --- Small speedy boat used in drug deals.
edsboat --- Ed's boat. Who's Ed? Trains
chairlift --- In snowy mountains.
train_carg --- Cargo train, like Freight from SA
trainf_carg --- trainf = front train?
trainr_carg --- trainr = rear train?
train_int --- International Train???