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ACL GTR Porsche 911 RSR 1973

ClassicAC Legends
330 hp
Horsepower
900 kg
Weight
RWD
Drivetrain
1973
Year

Porsche 911 RSR 1973 (Classic)

The Porsche 911 RSR 1973 is one of the most iconic customer-racing and endurance GT cars ever built — a lightweight, rear-engine German icon developed from the air-cooled 911 into a brutally effective race machine. In period, the RSR became a giant-killer, combining modest power with superb traction, sharp handling, and relentless durability.

Key Specs (BoP-dependent, typical sim values)

  • Powertrain: 3.0L air-cooled flat-6, naturally aspirated (rear-mounted, longitudinal)

  • Total Output: ~330 hp

  • Redline: ~8,000–8,200 rpm

  • Transmission: 5-speed manual

  • Weight: ~900 kg

  • Dimensions: ~4,200 mm long × 1,650 mm wide × 1,320 mm tall | Wheelbase ~2,272 mm

  • Tires: Period slick racing tires on 15-inch wheels

  • Brakes: Ventilated discs with race-spec calipers

  • Layout: Rear-engine, rear-wheel drive

In the Simulator Feel

The 911 RSR is a delicately balanced but highly rewarding classic racer that demands respect on turn-in and throttle application. Its rear-engine layout gives it tremendous traction on corner exit, but it also means weight transfer is everything — lift the throttle abruptly or brake too hard mid-corner, and the tail will rotate quickly. When driven smoothly, the car feels incredibly agile and alive, with a distinctive sense of momentum that makes every lap engaging.

Engine & Sound: The air-cooled flat-6 has a mechanical, metallic soundtrack with a hard-edged induction note and a busy, motorsport-specific scream as it approaches the upper end of the rev range. It doesn't overwhelm with torque; instead, it rewards keeping the engine on the boil and carrying speed through corners. The sound in sim should feel raw, eager, and unmistakably Porsche.

Handling Characteristics:

  • Cornering: Excellent front-end bite for a rear-engined car, but it can snap into oversteer if you overcommit on entry.

  • Traction: Outstanding off the corner, especially in lower gears, thanks to the rear weight bias.

  • Braking: Strong by period standards, but stability under heavy braking depends heavily on setup and driver finesse.

  • Top Speed: Respectable in a straight line, though the car's real strength is its cornering efficiency and exit drive.

Driving Style Tip: Use smooth, progressive inputs and avoid sudden lifts mid-corner. The RSR rewards patience, a clean line, and early confidence on the throttle. It shines on technical, flowing circuits where momentum matters more than outright horsepower.

Livery & Aesthetics: The 1973 RSR is pure motorsport beauty — wide fenders, ducktail spoiler, minimalist race trim, and classic period liveries that make the 911 silhouette instantly recognizable. It has that unmistakable vintage Porsche presence: compact, purposeful, and timeless.

For drivers who appreciate classic machinery with real personality, the Porsche 911 RSR 1973 is a joy in the simulator — demanding, authentic, and deeply satisfying when you get it right.