The sedan delivery has better aerodynamics, but some provision for cooling is needed. The front end I don't mind is the Willys. I think the 'sharknose' may help airflow over the windshield, like a big bug deflector but for air.
This racer is all aero'd out below the headlights.
ChopStix — you need to be working on your Harley golf cart. I suggest a Lexus motor.