The history of chassis J2X 3042 begins in February 1952 when, according to marque experts, it was sent to Noel Kirk Motors, the famous Los Angeles Allard dealer. By the 1960s, it was owned by former B-52 pilot Evan Enninger of Downey, California. Mr. Enninger bought the J2X from his neighbor, allegedly for $35, and kept it in static storage for the next 20-plus years. In 1997, Andrew Simpson of Texas purchased the J2X and eventually commissioned renowned Allard specialist John Harden of The Vintage Connection, Inc. in Oklahoma City to restore it to its original specification. The restoration spanned 2 1/2 years and nearly 2,600 hours. After being completely stripped down, the car was restored, with improvements made to known J2X weak points. The body was repaired as necessary, with particular attention paid to the rear section, which had been widened to accommodate larger rear tires. The restoration included a complete rebuild of the Cadillac 331 V-8 with upgrades for power and reliability.

Shortly after the $285,000 restoration was finished in 2005, Mr. Simpson sold the J2X to its next owner, who campaigned it in 10 Colorado Grand tours and completed every one without a mechanical failure, before being acquired by the consignor. In its current ownership, the Allard received additional cosmetic work, including the fabrication of a top and a taller windscreen for touring, both of which accompany the sale. This J2X is an attractive example with a well-known history that is eligible for countless events worldwide.