Rail inspection cars such as PE's '57 Pontiac are still in use. While sturdy medium-priced sedans and wagons such as Pontiacs, Buicks, and Chryslers were once popular for conversion, SUVs or 4-door pickups are the vehicles most often seen with Hy-Rail equipment today.
AACA
OK, it's not on rails at the moment, but it can if it wants to...
AACA
The fender emblem on another Hy-Rail '57 Pontiac