The two eldest of the three kids decide that the only sensible vehicle to purchase would be anicecreamtruck filled to the top with Good Humor icecream bars and, as an added option, comes with the happy song that streams from the scratchy PA system perched on the roof.
One hugely affective cue is auditory: Thanks to resonator tubes pumping intake and exhaust sounds into the cabin, the BRZ snarls and burrs and howls like a garage-built retro rod, even when it's accelerating away from a light like an ice-cream truck (0-60 mph in about 6 seconds).