Porsche built only 200 factory M471 Lightweights. However, only four examples of the Porsche 911 RS 2.7 Lightweight were Gulf Blue. This is one of those that carries the color that the dominant 917s carried in motorsport.
In addition, this RS was optioned with a limited-slip differential and left and right headrests.
This example still retains its matching-numbers engine and gearbox, too.
Find this 1973 Porsche 911 Carrera RS 2.7 Lightweight up for auction at Gooding & Company, with an estimated value of $1,300,000-$1,600,000.