Driving Dictionary: AWD vs. 4WD!! At its simplest, here is the difference between all-wheel and 4-wheel drive. Oftentimes, cars with 4WD capabilities come equipped with part-time 4-wheel drive systems that must be manually engaged (locking differentials), and otherwise are operated in all-wheel drive. #cars#4wd#awd#allwheeldrive#fourwheeldrive#offroad#driving#gwagon#differential#transfercase#transaxle#driveshaft | Gail’s Garage