Gilbern

Gilbern Price Guide

Gilbern holds a unique position in British motoring history as the only car manufacturer to have operated in Wales. These are rare, characterful GT cars with a wonderful origin story – a butcher and a former German POW building sports cars in a converted colliery in the Rhondda Valley – and a survival rate that is remarkably high thanks to their fibreglass bodywork and the devotion of the Gilbern Owners Club. If you own a Gilbern, you own something with a genuinely distinctive identity that resonates strongly in Wales and increasingly across the wider British classic car community.

What Affects Gilbern Values

Model and condition are the primary factors. The fibreglass bodies have survived where equivalent steel-bodied cars of the era have long since rusted away, but the steel chassis underneath is vulnerable and should be inspected carefully. Because production numbers were so small across all three models, any Gilbern in good condition is genuinely scarce and likely to stand out.

Originality is valued, but Gilberns have always been enthusiast-owned cars that lend themselves to modification, so finding a completely original example is rare – the club community tends to be relaxed about sympathetic upgrades provided the car retains its character. The Gilbern Owners Club has around 400 members worldwide and is the essential resource for parts, knowledge, and access to buyers.

The GT (1959-1967)

The original GT was produced in approximately 280 examples using BMC mechanicals and is the rarest of the three models. Early cars used Austin-Healey Sprite or Coventry Climax engines; later versions had the MGA or MGB B-series unit. The GT is a compact, pretty two-seat coupe that has been favourably compared to a baby Aston Martin in profile. Values have been rising as the cars become scarcer and the founding story attracts wider attention. Any GT with documented early ownership or competition history is particularly desirable.

Genie and Invader (1966-1973)

The Genie (approximately 200 built) and its successor the Invader (approximately 600 built) are the cars most people think of when they hear the Gilbern name. Both use the Ford Essex 3.0-litre V6 engine, giving genuinely brisk performance in a car that weighs considerably less than its Ford-powered contemporaries. The Invader Mk II estate version, produced in around 100 examples, is a particularly interesting car – a fast Welsh estate that predated the modern performance estate concept by decades. The Mk III Invader, with Cortina front suspension and a revised body, was the most developed but also the shortest-lived due to the company’s closure. Across the range, values are modest compared to equivalent British GTs of the period, which makes Gilbern one of the more affordable and rewarding ways into 1960s and 1970s British sports car ownership.