Acura ARX-05 (DPi Prototype)
The Acura ARX-05 is a sharp-edged North American prototype racer built to compete in IMSA's DPi class. Developed around the Oreca 07 chassis and powered by Acura's twin-turbo V6, it blends factory endurance racing performance with a distinctly aggressive, Acura-branded identity.
Key Specs (BoP-dependent, typical sim values)
Powertrain: 3.5L twin-turbocharged V6 (mid-mounted, longitudinal) on an Oreca-based DPi chassis
Total Output: ~600 hp (447 kW) combined
Redline: ~8,500–9,000 rpm
Transmission: Xtrac 6-speed sequential
Weight: ~930 kg minimum
Dimensions: ~4,850 mm long × 2,000 mm wide × 1,050 mm tall | Wheelbase ~3,150 mm
Tires: Michelin slicks on forged prototype wheels
Brakes: Carbon-carbon discs with endurance-spec multi-piston calipers
Layout: Mid-engine, rear-wheel drive prototype
In the Simulator Feel
The ARX-05 is a stable, confidence-building prototype that favors rhythm and precision over wild aggression. It has excellent aero grip and a planted platform through fast corners, but like most DPi cars it still demands respect under braking and on corner exit. In the sim, it feels composed and approachable, making it a strong choice for drivers who want prototype pace without the nervousness of some lighter, peakier machinery.
Engine & Sound: The twin-turbo V6 delivers a deep, muscular growl with a hard-edged turbo snarl as revs climb. Power comes on smoothly in the midrange, then surges with a strong, torque-rich punch that makes acceleration feel effortless out of slower corners. The exhaust note is less shrill than an LMP1, but it has plenty of character and a satisfying mechanical intensity.
Handling Characteristics:
Cornering: Strong front-end bite and excellent aero support through medium- and high-speed corners.
Traction: Predictable rear grip, though abrupt throttle inputs can still provoke snap oversteer.
Braking: Very strong stopping power with good stability, especially when the tires are up to temperature.
Top Speed: Competitive on straights, with DPi balance often favoring acceleration and drivability over outright peak speed.
Driving Style Tip: Drive it smoothly and let the chassis do the work. The ARX-05 rewards clean inputs, early commitment to throttle, and disciplined braking. It shines on technical endurance circuits where consistency, tire management, and aero confidence matter most.
Livery & Aesthetics: The Acura ARX-05 looks every bit the modern endurance prototype — low, wide, and purposeful, with a muscular nose, sculpted bodywork, and dramatic Acura styling cues. In sim racing, it stands out with its factory race presence and unmistakably aggressive silhouette.
Whether you're chasing hot laps or full stint consistency, the Acura ARX-05 is a polished and highly capable DPi that delivers a clean, satisfying prototype experience.