The 1974 Porsche 911 Carrera RSR 3.0 Comes to Project Motor Racing

June 08, 2026

The Whale that Ate the Duck

The 1974 Porsche 911 Carrera RSR 3.0 was the moment the Porsche 911 decided to go elbows-out. Wider, meaner, louder, this was the next evolution of the already legendary Carrera RS.

Built around a 3.0L air-cooled flat-six, the RSR 3.0 pushed the 911 into pure racing territory, its big arches, wider track, and unmistakable silhouette helping define the racing 911 myth for a generation of fans.

And then there was the thing with the wing.

The earlier Carrera RS 2.7 brought the world the ducktail. The RSR 3.0 carried that aero thinking into something a lot more aggressive: the larger, lighter rear spoiler that would become known as the “whale tail”.

Part of the myth of the RSR 3.0 is that it sits at a crossroads moment in Porsche’s GT evolution. The classic rear-engined, air-cooled lunacy is still there, but the whole platform was now evolving into something more track-specific, more confident, and more serious. This is the moment when the 911 moved beyond gentleman-racer charm and became one of the defining GT weapons of its era.

And the results back that up. Plenty.

In 1974, Porsche’s works team shifted focus toward what would evolve into its turbocharged era, leaving the naturally aspirated RSR 3.0 to make its name with customers and privateers. Endurance racing, sprint racing, Europe, and the growing IMSA scene. Everywhere it raced, the RSR 3.0 became a winning force. For privateers who wanted a fast, durable, proven GT car in the mid-’70s, the RSR 3.0 was on every team’s list, and usually at the top of it.

Daytona and Legacy

It’s difficult to find the greatest moment of triumph for the RSR 3.0, but the 1975 Daytona 24 Hour is probably hard to beat. That’s when Peter Gregg and Hurley Haywood won the race in a Brumos liveried Porsche 911 Carrera RSR 3.0. Better yet, Carrera RSRs swept the first five places overall.

Not a class win. The whole enchilada. First through fifth.

That’s the legacy of the RSR 3.0. Fast, tough, readable, and fully exploitable over multiple stints. It was the kind of car that could be bought, prepared, repaired, and then sent out to embarrass almost everything else in the paddock—provided the customer had a decent budget and some decent wheel workers.

In Project Motor Racing, this is the kind of car you fall in love with—but only once you understand how to drive a 911. It’s not about lazy grip or effortless modern aero. And while around 280km/h from an air-cooled 911 in 1974 is still plenty stonking, the real magic is elsewhere.

It’s about weight transfer, patience, throttle discipline, and that wonderful old 911 bargain: respect the rear, and it will fire you out of corners like a rocket. Get greedy, and it will remind you exactly where the engine lives.

Getting the nose pointed requires little more than throwing it at the apex and getting off the throttle. Getting the rear into the barrier requires little more than staying off the throttle a fraction too long.

The 1974 Porsche 911 Carrera RSR 3.0 is a corner-by-corner contract between driver, commitment, and car control.

Yours to drive as part of the GT Icons Pack coming to Project Motor Racing June 23rd. Enjoy.

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