Allard
J2X Le Mans

Why it matters

The J2X Le Mans was Allard's hurried answer to the envelope-body rule brought forward for the 1952 Le Mans 24 Hours, which banned cycle-winged cars like the standard J2X. It kept the J2X's chassis and running gear under a new full-width front body, and only around fourteen were built.

How rare is it?

Six separate kinds of rarity – never combined into one number.

Each kind of rarity is rated separately and never combined.

Photos

Exterior, interior and detail photos with their licences.

• Allard J2X Le Mans (Wikimedia Commons: Allard J2X Le Mans)
  Photo: Mr.choppers · CC BY-SA 3.0
• Allard J2X Le Mans (Wikimedia Commons: Allard J2X Le Mans)
  Photo: Mr.choppers · CC BY-SA 3.0
• Allard J2X Le Mans (Wikimedia Commons: Allard J2X Le Mans)
  Photo: Mr.choppers · CC BY-SA 3.0
• Allard J2X Le Mans (Wikimedia Commons: Allard J2X Le Mans)
  Photo: Andrew Bone from Weymouth, England · CC BY 2.0

Production

Every figure says what it counts.

Independent counts (e.g. engine and colour) are never combined into a calculated figure. Surviving examples are never presented as original production.

History

Allard had raced at Le Mans in 1950 and 1951 and planned to enter J2Xs in 1952. When the envelope-body rules were moved forward by a year, the JR project was set aside and Allard's body shop produced the Le Mans body within weeks so that two J2Xs could be modified in time. After the race further Le Mans-bodied cars were built, most of them going to customers in the United States, typically with Cadillac or Chrysler engines.

Technical specifications

Engine

Transmission & drivetrain

Chassis, body & dimensions

Performance

“Not yet verified” means no source has been checked for that value yet. Nothing is estimated to fill a gap.

Identification guide

How to tell an original from a replica or later conversion.

The car is a standard J2X ladder frame, suspension, running gear and rear body; everything forward of the door jambs is new. Look for the C-Type-like cowl, a whole bonnet hinged at the front, lower pods running back to the rear wings and bolted to the frame as one unit with the cowl, and doors unique to the J2X LM. Documented chassis include 3071 and 3149.

Sources

Each number links to the exact facts it supports.

1. 1
   The Allard Register blog – J2X Level A

   • 14 J2X Le Mans built

   Accessed 2026-11-11
2. 2
   Le Mans 24 Hours 1952, photo and entry listing Level C racingsportscars.com

   • Chrysler 331 V8 5394 cc
   • Allard J2X Le Mans - Chrysler 331 V8 5394 cc

   Accessed 2026-11-13