Lagonda
3-Litre Drophead Coupé "OXR 1" of the Duke of Edinburgh

Why it matters

This 1954 Lagonda 3 Litre Drophead Coupé was built to the special order of Prince Philip, Duke of Edinburgh, and is described as the car that won Aston Martin Lagonda its first Royal Warrant.

How rare is it?

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

Each kind of rarity is rated separately and never combined.

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

The car is finished in a bespoke Edinburgh Green with grey leather, and is described as one of just 20 Mark I cars made. The Duke used it for personal transport until 1961. It had covered about 50,000 miles from new when H&H Classics sold it at Duxford for GBP 350,000, a record for a Lagonda 3-litre against the earlier mark of GBP 80,000. The report says it took children to school and the Queen and Prince Philip to polo matches.

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.

Sources

Each number links to the exact facts it supports.

1. 1
   Racecar.com – 1954 Lagonda 3 Litre Drophead Coupe, built at the order of HRH Prince Philip, The Duke of Edinburgh Level C

   • 1 Individual car: the 1954 Lagonda 3-Litre drophead 'Built to the special order of HRH, Prince Philip', chassis LB/290/31 (one of 20 Mk1 dropheads)

   Accessed 2026-11-12