From 1975 and 1989, Porsche developed the Porsche 930 Turbo, a classic sports car. There were two separate engine types for the Porsche 930 Turbo. The first one, a 3.0-liter flat-six with a single turbocharger that operated from 1975 to 1977, produced 260 horsepower (191 kW) and 255 lb-ft (345 Nm), and the second, a 3.3-liter flat-six with an intercooler that operated from 1978 to 1989, increased the power to 296 horsepower (221 kW) and 304 lb-ft (412 Nm). There was also a special Turbo S model that boosted the power to 330 hp (246 kW) and 344 lb-ft (467 Nm) of torque.
The 3.0-liter Turbo (1975–1977) had a 0–60 mph time of 5.4 seconds and a top speed of 160 mph (257 km/h). From many sources, the Porsche 930 Turbo has drawn mixed reviews. Some critiqued its handling, dependability, and fuel efficiency, while some lauded its performance, power, and design. Its propensity to oversteer at high speeds earned it the nickname “The Widowmaker.”