This happens within the first minute of the episode. At 0:24 into the episode while driving, Steve and Oscar have a blowout on their car. They show a close up of the flat tire as it happens. You can clearly see a dish type hubcap (the type that only covers the lugnuts) on the wheel. After they stop, at 0:49, they show the tire again and now the hubcap is a 5-spoke design that covers the entire rim.