I just watched that movie a few weeks ago and then shared that exact clip with a friend of mine. He thought Dan's straight-faced description of the car was hilarious (which it is!). I love at the end when Dan asks John if he likes it and he tells him fix the cigarette lighter then they both get that little smirk on their faces.
If you haven't listened to this song, check it out. I like the whole thing, but if you just want to hear the part where Dan proclaims his Mopar love, jump to 4:00