It's been said that the "eyes are the windows of the soul", so it's a bit more loigcal. Besides, most race cars don't actually have headlights.
Great lines, great cameos (where else are you going to get Richard Petty, Darrell Waltrip, Mario Andretti, and Michael Schumacher in one sitting?), and superb animation as usual.
Other oddities:
- The "Cadillac Ranch" in the background of Radiator Springs.
- There's real a Radium Springs out west.
- Dinoco was the fuel company used in Toy Story, when Buzz and Woody fought each other and got lost from Andy.
- The two girls were Miatas.
- Kenny G made an audio appearance (I won't call it music).
- Luigi's a Fiat 500.
- Maseratis flanked MS at the end of the flick.
- Clink and Clank, the Tappet Bros. of Car Talk fame were the rusty car announcers.
- George Carlin was the VW van.
Yeah, I enjoyed it.