Ron Swanson's car is a burgundy 1997-2002 Buick Park Avenue Ultra. Ron's Buick is first seen in Season 2 in the episode "Ron and Tammy" when Ron falls back in love with Tammy 2 and drives to a motel to make love.
The car is seen sporadically throughout Seasons 2-4. In "Freddy Spaghetti" the car is seen briefly as Ron runs out to warn Leslie Knope that Ben Wyatt and Chris Traeger are coming to shut down the children's concert.
The car is most heavily featured in Season 5; most notably in "Ms. Knope Goes to Washington" Ron drives away with the grill after becoming angry with everyone's complaints at the barbecue.
In the episode "Sex Education" the car is damaged after Tom Haverford crashes it into a tree while distractedly using his phone. Ron forces Tom to read "Motor Auto Repair Manual 1981" so he can assist him with repairs. However, this inclusion must have been an oversight by the writers as this manual only covers 1976-1981 U.S. models.
In "Ron and Diane" Leslie drives Tammy out into a field to keep her away from Ron. They subsequently fight over the keys in a dumpster until Tammy finds the keys and starts to drive away. Leslie jumps into the window before Tammy gets away. The following morning, Ron discovers Leslie trapped in the trunk when the car is impounded by the Police.
- The 1997-2005 Buick Park Avenue is a front-wheel-drive luxury sedan powered by a 3.8 litre V6. The second generation Park Avenue was produced by General Motors from 1996-2005 and is based on the GM G-Body platform.
- The "Ultra" is the supercharged variant with which gains 35 hp over the base model's 205 hp. The Ultra is distinguishable from the base model Park Avenue by its lack of a hood ornament, larger chrome wheels, and "Ultra" in place of the base model's "Park Avenue" on the rear quarter panel.
- Though discontinued in the United States in 2005, the Park Avenue continued to be produced in China from 2007-2012 on the GM Zeta Platform.
- Ron's Buick cannot be newer than 2002 since it lacks the fender "Ventiports" and the revised grille introduced on the 2003 model. Ron has stated that he has owned the car for over 10 years.