The Delta ATV is the highly agile battlefield vehicle of the Shadow Ranger. It was (like all of the weapons) designed by Dr Manx, who revealed it to Doggie Cruger when Gruumm had challenged him to a face-off.
While the Delta ATV may not match the Patrol Cycles in terms of speed, it outmatches them in pure robustness. It certainly needs to be, as it is a very acrobatic vehicle, capable of performing large jumps. For long range combat, it is equipped with Laser Cannons and sophisticated targeting systems.