
In the season 1 finale, a truck driven by a possessed trucker smashes into the Impala causing serious damage to her and her occupants. Sam drives the Impala through the front wall of her home and comes to a stop in the living room, where she is confronted by the ghosts of her drowned children and destroyed. Later, as Sam is driving the Impala, the ghost takes control of the car again to make him drive her home. In Pilot, a ghost possesses the Impala and tries to run Sam and Dean over.

The car is Dean's most prized possession, and he protects it with nearly the same ferocity with which he protects his family. The trunk is revealed to hold various weaponry to fight the supernatural. The car has been prominently featured on the series, beginning with the teaser of the pilot which shows John Winchester holding his two sons as he sits on the car and watches his house burn. As the Impala is not of that Earth, it is the only known object capable of killing Joan Hopkins and the Akrida. This Impala, along with acting as Dean's transport through Heaven, was also used by Dean while he was in the Monster Club Universe.
SUPERNATURAL 7.18 LICENSE
The Impala, featuring its original license plates, also exists in Heaven at the same time as Sam owns the Impala on Earth. Dean refers to the Impala affectionately as ' "Baby." At the end of the series, it is unknown what became of the Impala although Sam might've left it to his son Dean Winchester II. The trunk holds a mass of weapons that are modified and crafted to aid the Winchesters in their hunting activities. After Sam and Dean escaped from prison, Dean mentions that the old plates needed to be ditched and the car sports a new Ohio license plate (CNK 80Q3) first seen in What Is And What Should Never Be. It bears a Sedgwick County, Kansas license (though their hometown of Lawrence, Kansas is actually in Douglas County) plate (KAZ 2Y5), a reference to Kansas, the Winchesters' home state, and 2005, the year the show premiered. According to Dean, the car has 327 Engine and a Four Barrel Carburetor.

It was passed down to him by his father, who bought it in 1973 after a future Dean convinces him to buy it over a 1964 VW Van in the episode In The Beginning. The Impala is Dean Winchester's trademark black 1967 Chevrolet Impala.
