What car is given to the punks by the person who runs the gas station?
Grant, Biscuit, and Milo are punks living in Queens. Bored with their lives, they decide to move to Los Angeles, and set out on a cross-country drive. In Utah they assist Elvis impersonator "Daredelvis" with getting his trailer unstuck. Later, Grant sees a mirage of a cowboy on horseback. While camping in the Arizona desert they are attacked by a gang of vicious rednecks, and Milo is murdered by their leader, Missoula. Grant and Biscuit escape and collapse in the desert, where Grant again sees a vision of the cowboy.
The local sheriffs do not believe the boys' story, having no record of Missoula or his gang and being unable to find Milo's body as evidence of the murder. Grant resolves to track down the gang and avenge Milo's death, despite Biscuit's reservations. Heading back into Utah, they find one of the gang's trucks overturned and several of the members dead. Before dying, one of them reveals that they planned to turn themselves in but were killed by Missoula, who is headed north through Wyoming to Montana. The boys also meet Jessie, a young woman who runs a gas station and towing business.
Catching up to Missoula's truck, Grant and Biscuit engage in a high-speed shootout with Missoula and his buddy Blix, but swerve off the road and crash. They are rescued by Jessie, who teaches Grant how to shoot and ride a horse and strikes up a romance with him. Meanwhile, Biscuit has a dream in which he is part of a Native American tribe who are slaughtered by Union Army soldiers led by Missoula. Upon awakening, he begins to imitate a Native American warrior and insists on resuming the pursuit. Jesse outfits the pair in exaggerated western costumes and gives them use of a beat-up 1959 Buick Invicta complete with bull's horns mounted to the hood.
1959 Buick Invicta