1973 Porsche 911 Carrera RS 2.7 Lightweight


1973 Porsche 911 Carrera RS 2.7 Lightweight

Of all the 1580 Carrera RS 2.7s, only 200 were made were ordered in a lightweight ‘Sports’ trim which made the car more responsive and purposeful. In many ways these few cars were the ultimate road-going Porsche of the 1970s. Known as the Sports, Lightweight or even the M471 option code, these cars had every amenity removed to reduce overall weight and improve the power-to-weight ratio. Reports of 100kg to 200kg were stripped from the standard model by fitting lightweight body panels and lightweight glass. As a result, the Lightweight was a nimble 900kg car compared to its Touring counterpart.

1973 Porsche 911 Carrera RS 2.7 Lightweight

Inside, competition-style bucket seats, minimal door panels, thin carpeting and lack of sound deadening contributed to the theme. Gone were the rear seats, glovebox panel, the clock and passenger-side visor. Under the hood, a plastic 85-litre gas tank was fitted and only one battery was used.

Both the Touring and Lightweight shared some of the same hallmarks such as the ducktail rear spoiler, larger flares for the Fuchs alloy wheels and the larger 2.7-litre engine capable of 210 bhp.

The lightweight is easy identified by its fibreglass rear bumper guards. Other than that it is almost outwardly identical to the Touring models.

In Detail

submitted byRichard Owen
typeSeries Production Car
built atStutgart, Germany
production200
engineAir-Cooled Flat 6 w/Dry Sump Lubrication
positionRear, Longitudinal
aspirationNatural
valvetrainSOHC
fuel feedBosch Mechanical Fuel Injection.
displacement2687 cc / 164.0 in³
bore90 mm / 3.54 in
stroke70.4 mm / 2.77 in
compression8.5:1
power156.6 kw / 210.0 bhp @ 6300 rpm
specific output78.15 bhp per litre
bhp/weight233.33 bhp per tonne
torque254.89 nm / 188 ft lbs @ 5100 rpm
body / frameUnit Steel, Fiberglass Decklid
front tires185/70VR-15
rear tires215/70VR-15
front brakesRadially Vented & Axially Drilled Discs
rear brakesRadially Vented & Axially Drilled Discs
front wheelsF 38.1 x 15.2 cm / 15.0 x 6 in
rear wheelsR 38.1 x 17.8 cm / 15.0 x 7 in
steeringRack & Pinion
f suspensionTransverse Control Arms w/Torsion Bars, Anti-Roll Bar, Bilstein Shock Absorbers
r suspensionTrailing Arms w/Torsion Bars, Anti-Roll Bar, Bilstein Shock Absorbers
curb weight900 kg / 1985 lbs
wheelbase2271 mm / 89.4 in
front track1443 mm / 56.8 in
rear track1473 mm / 58.0 in
length4147 mm / 163.3 in
width1778 mm / 70.0 in
height1321 mm / 52.0 in
transmission5-Speed Manual
gear ratios3.18:1, 1.83:1, 1.26:1, 0.925:1, 0.724:1
final drive4.43:1
fuel capacity85 litres or 22.44 gal.

Auction Sales History

1973 Porsche 911 Carrera RS 2.7 Lightweight
1973 Porsche 911 Carrera RS Lightweight 9113600354 – did not sell for $900,000 First Series M471 Lightweight. One Of Only 240 Lightweight Models Built. Original Swiss Delivery. Excellent Provenance Period Racing History. Restored By Nate Cantwell And Douglas Brown. A Well-known And Well-respected RS Lightweight. Auction Source: ‘Rolling Sculpture’ 2015 NYC by Keno Brothers
1973 Porsche 911 Carrera RS 2.7 Lightweight

Viper Green 1973 Porsche 911 Carrera 2.7 RS Lightweight 9113601034 – sold for $935,000 An Outstanding Example of Porsche’s Iconic 2.7 RS. One of Only 200 M 471 Lightweights Built. Originally Finished in Striking Viper Green Livery. Fascinating Italian Provenance Documented by ACI Records. Beautifully Restored and Equipped with Proper 911/83 Engine. Auction Source: The Pebble Beach Auctions 2015 by Gooding and Company
1973 Porsche 911 Carrera RS 2.7 Lightweight

Grand Prix White 1973 Porsche 911 Carrera 2.7 RS Lightweight 9113601193 – sold for $962,500 Fully Documented Restoration by the Porsche Factory in 1995. Continuous Maintenance Records Since Restoration. Retains Matching-Numbers Engine. One of 200 Carrera RS M471 Lightweights. Classic Grand Prix White with Red Livery. Auction Source: The Pebble Beach Auctions 2015 by Gooding and Company
1973 Porsche 911 Carrera RS 2.7 Lightweight

1973 Porsche 911 Carrera RS 2.7 Sport Lightweight 9113600649 – sold for €1,008,000 One of just 200 M471 lightweight “Sport” versions. A matching-numbers example; four documented owners from new. Freshly and thoroughly restored by Porsche specialists, with no expense spared. The “must-have” for any serious Porsche collector. Auction Source: Villa Erba 2015 by RM Sotheby’s
1973 Porsche 911 Carrera RS 2.7 Lightweight

1973 Porsche 911 Carrera 2.7 RS Lightweight 9113600883 – sold for $1,402,500 Arguably the Most Recognizable Classic 911. Desirable German Delivery, Second-Series M471 Lightweight. One of Only 240 Such Examples Produced. Original Grand Prix White with Blue Livery. Highly Original Example. Matching-Numbers Engine and Transmission. A Remarkably Pure and Sorted Carrera 2.7 RS. Eligible for Exclusive International Concours and Driving Events. Auction Source: The Amelia Island Auction by Gooding & Company

 

1973 Porsche 911 Carrera RS 2.7 Lightweight

1973 Porsche 911 Carrera RS Lightweight 9113601210 – sold for $470,000 1 of 200 original M471 Carrera RS Lightweights. Correct matching Lightweight chassis and VIN per factory build records. Correct 2.7 liter Series 1 Carrera RS engine. Fully documented ownership from new with German Fahrzeugbrief. Restored by Winkler and Ehlert, Germany. Pace car for the 20 year Anniversary of the RS Parade, Hockenheimring, Germany. Auction Source: 2012 Daytime Auction by Mecum
1973 Porsche 911 Carrera RS 2.7 Lightweight

1973 Porsche 911 Carrera RS Lightweight 9113601079Having covered less than 54,000 kilometers, this RS is in great cosmetic condition overall, with a great presentation that pleasantly balances the freshness of a recently restored car with the honesty of an un-restored one.

The car completed service in June 2009, by the highly regarded David Loop European, to include the replacement of shift bushings, hood supports, lubrication of throttle linkage, replacement for the engine compartment insulation, new front and rear brake pads, brake fluid flush, oil and filter change, and clutch cable boot. The distributor cap and ignition rotor were also replaced. In August of 2009, Porsche expert Ben Kirchner comprehensively inspected the car. His overall impression was extremely positive, and he marveled particularly at what a superb driving example this is, as well as at its excellent mechanical health. Auction Source: Monterey 2012 by RM Auctions