The Porsche 911 Carerra RS 2.7 was first produced in 1973 and was the first Porsche to feature "the ducktail" which was more about functionality than design, proven in wind tunnel and track testing to keep the rear end of the car firmly grounded. The car was developed in response to the introduction by the FIA in 1972 of a 3.0 litre limit for competition and the 2.7 litre was developed after the 2.4 litre 911 was not deemed strong enough. 

The Porsche 911, an air-cooled flat engine now with six instead of four cylinders replaced the Porsche 356. The engine increased from 2.0 to 2.4 litres in production models, and to 2.7 litres  in the 1973 Carrera RS. The 1966 Porsche 911 S was the first vehicle to sport the lightweight aluminium alloy construction Fuchs wheel. Sales of The 911 Original, G Series Type 964, Type 993, Type 996, water-cooled Type 997, Type 991.1 and 991.2 passed the 1 million mark on 31st October 2018.

The aluminium bodied Porsche 356 was superceded by a steel body in 1950 and was regarded by the company as it's first production car with four variants (A, B, C, and D)  during its life. It was an air-cooled 4 cylinder,rear-engine and rear-wheel drive car developed by Ferdinand Porsche, whose father created the VW Beetle. The 356 had 4-speed transmission and won it's class at the 1951 Le Mans and other competitions. Over 766,000 356's were produced in the four variants.