1953 Alfa Romeo BAT 5 Concept Car. Concepts created through a collaboration between Alfa, Italdesign, and Bertone &quot;BAT&quot;. They were far more than just stylistic exercises. They were intended to explore the aerodynamic effects of fins on automobiles. One of the advantages was enhanced stability at high speed. BATs could do over 125 mph thanks to the advanced aerodynamics. The exciting finned design reflected the world&#x27;s growing obsession with outer space and speed.