the g1 prime is what it is,vintage g1.you can tell from the longer smoke stacks and the lack of front wheel axles that stick out too far.
iirc,every prime cab or u/m cab released with rubber wheels after the first vintage version of prime has the wider axles.(the reason for the wider ones was because they slid into slots in u/m's trailer in order to combine magnus into ultramagnus.
the pic of g1 hotshot as a big headed cowboy bot made me lolz though.
for the "vintage" part of rid prime,maybe because it's almost 12 years old?
the part i like is apparently,according to the seller....."the figure connects with a trailor that was sold seperately"....bwahahahaha