The jet age had come full-force to automotive design by the 50s. Fiat took it a step further than just design influence. In 1954 they introduced the Turbina - a gas turbine-powered car - which debuted 8 years before the Chrysler Turbine. The Turbina concept had been in the works since 1948, with it's first track test on the rooftop track of the Lingotto factory in 1954.
The engine had two compressor stages, and one turbine stage, with Fiat claiming the car produced 300 hp at 22,000 rpm. The estimated top speed was 160 mph. But perhaps most notably, the car held the record for the lowest coefficient of drag at .14 until 1984 - a remarkable feat especially considering how much was still to be learned about aerodynamics.
The concept was ultimately killed off as a result of overheating issues, as well as it's high fuel usage.