Thanks for the compliment Ape. The 2 Chevrolet COE's have the GM/Muncie SM420 4 spd.Trans., while the 2 GMC COE's use the Clark 5 Spd. Trans., the '50 is Direct drive, while the '52 is an over-drive. Top speed, on the Chevrolets is, 48-52mph. , on the '52 GMC COE, top speed is around 54-56 mph. Haven't driven the '50 model COE on the road. Never really cared about what the gas milage is. They are all stock. Fun to drive, just don't get in a big hurry.
