Manufacturers of the Isetta bubble car, Iso joined the ranks of supercar constructors in 1962 with the launch of the Giotto Bizzarrini-designed Rivolta coupé at the Turin Motor Show.

The styling was carried out at Carrozzeria Bertone and penned by Giorgetto Giugiaro.

The Fidia, longer in the wheelbase by approximately 150mm, was a more practical proposition than the two-door Rivolta on which it was based.

Originally conceived as the S4 and introduced in 1967, the Fidia’s four-door body was airy, graceful, purposeful and sleek, continuing Iso’s leadership in advancing automobile design.

Chevrolet engines of 5.4 or 5.7 litres were fitted initially.

Towards the end of production, 35 Fidias were finally built with the 5.8-litre Ford V8 engine.

Iso’s proven underpinnings included independent front suspension, deDion rear axle and four wheel, power-assisted, disc brakes (inboard at the rear).

It is believed that in all 16 RHD Fidias (the first being sold to John Lennon in 1967) were p...