For 1973. the Challenger remained almost untouched. It had revised grille insert and large rubber bumper guards to meet safety bumper regulations. The slant-six was no longer the base engine with the 318-cid being the base. You could get a 340-cid V-8 as an option as well as a 4-speed transmission or a TorqueFlite automatic transmission as an option too. You could still get the Challenger Rallye as an option package. It had side scoops behind the front wheels and strobe-type tape stripes that ran the full length of the car. Car runs great. Original automatic transmission is slipping. All tags in place and car is completely original. Shipping to anywhere in USA can be arranged. TRUE SURVIAVORGARAGE STORED FOR LAST 20 YRSNO RESERVE AUCTIONANDREW@ 902 368-2892 FOR ANY DETAILED QUESTIONS