Rain failed to dampen the spirits of car enthusiasts when a Huddersfield engineering firm staged its annual Interesting Vehicles Day.

A fabulous 1921 Ford Model T and a turbo-charged Indianapolis 500-winning racing car were among more than 90 vehicles on display in the car park at the Turnbridge premises of Cummins Turbo Technologies.

The highlight of the firm’s ninth annual Interesting Vehicles Day was the unveiling of the Cummins-Holset Penske Racing car – fitted with a Holset HX50R turbocharger – which was driven to victory in the 71st Indianapolis 500 on May 24, 1987, by Al Unser Snr, the most successful racer in the history of the Indy 500 Motor Speedway.

The racing car will reside permanently at the firm’s St Andrew’s Road site.

Other attractions included a 1970 Chevrolet Nova and a 1880 Singer Sociable tricycle, loaned for the day from the Tolson Museum at Ravensknowle Park, as well as delivery vans, sports cars and saloons.

Students from Lowerhouses Primary School, Moor End Academy, Hollybank Trust and the Birch Tree day centre at Edgerton were among those invited to the event to meet Cummins engineers and car enthusiasts to learn about the engineering and technology that drives the automotive industry today.

Interesting Vehicles Day began as a 30-minute internal company event with only six cars. Nine years on, the annual event has raised more than £6,000 for charity.

A silent auction has already raised £1,200 for Cummins’ charity of the year – Support to Recovery, which is based in Huddersfield and works to promote positive mental health.