[RWebb]

no - that is surrounded by air on all sides, and does not need to stick to the road

a car needs to optimize several things:

1. drag
2. downforce
3. side winds (baaaad in a rear engined 911)
4. airflow management - air for driver, passengers; air for engine intake; exhaust; for cooling brakes and engine


with an animal, you can often close off openings for various things and use slits (a favorite example, is that male dolphins can retract the penis and enclose it in a flesh covered slit when not deployed for operations); blowhole is similar