When the gang pulls into the Steamtown Mall in Meredith's 1991-1996 Ford Aerostar XL, the hubcap on the rear driver's side wheel is missing. This is the same wheel which gets a puncture in its tire later in the episode. The hubcap was already missing before the blowout, prepped for the upcoming roadside scene.
During their negotiation, Michael tells David Wallace and Charles Miner that, among other things, he wants a Chrysler Sebring as part of the Dunder Mifflin-Michael Scott Paper Company buyout. Miner declines by saying "they don't make them anymore." Having been released in 2008, Season 5 would have occurred during Chrysler's third generation of the Sebring, produced from 2007 to 2010. Miner and Wallace later agree to Micheal's terms, and Michael receives a 3rd generation Chrysler Sebring convertible. In S6:E1 , Stanley Hudson attacks Michael's Sebring with a crowbar in the Dunder Mifflin parking lot causing significant damage.