automotivebriefs
9:02in productionCh. 1 · Origin/ 9:02 · ceiling 15 min
Concepts & prototypes

Alfa Romeo BAT

Three cars built to chase zero drag—not speed, not comfort, not sales.

The BAT series is a focused, documented exercise in aerodynamic research—not styling, not engineering for power, not market readiness. It is a rare case where form follows one measurable physical constraint, iterated across three years, with no deviation from that brief.

Chapters & takeaways4
  1. 0:58
    Origin

    The BATs are Italian concept cars born from a 1953 Alfa Romeo–Bertone partnership.

  2. 2:14
    Timeline

    Three cars—BAT 5, BAT 7, BAT 9—debuted at the Turin Auto Show in 1953, 1954, and 1955.

  3. 4:14
    Designer

    Franco Scaglione designed all three BATs while at Carrozzeria Bertone.

  4. 5:30
    Purpose

    They were built on the Alfa Romeo 1900 chassis to test drag reduction—nothing else.

Worth your time?

Yes. Drive the whole thing.

4.5/ 5
What works
  • drag reduction as sole objective
  • iterative form development
  • chassis reuse as control variable
What does not
  • performance
  • usability
  • production intent
Drive it if
  • designers
  • aerodynamics researchers
  • automotive historians
Skip it if
  • collectors
  • drivers
  • enthusiasts seeking driving experience
The written brief1 min read

What the car is and where it came from

The BAT is a trio of Italian concept cars: BAT 5 (1953), BAT 7 (1954), and BAT 9 (1955). They emerged from a 1953 Alfa Romeo–Bertone collaboration. Franco Scaglione designed all three.

How it works, in terms someone would actually use

The BAT cars sit on the Alfa Romeo 1900 chassis. Their bodies are shaped to reduce aerodynamic drag. Each car was built as a rolling test of airflow behaviour.

What it gets right

It isolates drag reduction as a singular design goal. The progression from BAT 5 to BAT 9 shows iterative refinement of that goal.

What it does not

It does not deliver performance data, driver feedback, or production intent. It is not a prototype for a production model.

What it changed

It demonstrated that extreme aerodynamic form could be explored in road-car packaging without altering mechanical layout.

Who it is for, and who it is not

It is for designers, engineers, and historians focused on mid-century automotive research. It is not for collectors seeking drivable classics or buyers seeking usability.

Is it worth your time

Yes—if you care about how design solves physics problems, not just how cars look.

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