What: Audi RS2 Limousine Prototype
Era: Audi postwar era (early RS development)
Model Family: 80 / RS2
Market / Zone(s): Internal development (Germany)
Year Produced: June 1994
Registration Plate: IN-C 8726
Debut: Internal prototype; no public debut
Production Span: June 1994 (prototype build date)
Number Produced: 1 (documented Audi Tradition vehicle)
Model / Generation Code(s): P1 / B4
Chassis / Matrix: B4 / Volkswagen Group B-platform
TECHNICAL DETAILS
Body Style(s): 4-door sedan (Limousine prototype)
Drivetrain Configuration: Longitudinal front engine, all-wheel drive
Engine(s): 2.2-liter (2,226 cc) DOHC 20-valve inline five-cylinder, turbocharged
Power: 232 kW (315 PS; 311 hp) (development target)
Torque: 410 Nm (302 lb-ft)
Transmission(s): 6-speed manual
All-Wheel Drive Type: quattro permanent all-wheel drive with Torsen center differential
Suspension: Prototype sport suspension (Porsche co-developed calibration)
Brakes: Porsche-sourced Brembo braking system (development specification)
Wheel Size(s): 17-inch Porsche Cup design
Bolt Pattern: 5×130 (Porsche specification)
PERFORMANCE
Acceleration (0–100 km/h / 0–62 mph): Development target approximately 5.4 seconds
Top Speed: Approximately 262 km/h (163 mph)
OTHER DETAILS
Predecessor: Audi S2 (B4)
Successor: Audi RS2 Avant (production model)
Platform Mates: Audi 80 (B4); Audi S2 (B4)
Assembly Location(s): Audi development; later Porsche Rossle-Bau for production RS2
Designer(s): Joint Audi / Porsche engineering teams
Motorsport Homologations:
Archival material and Audi Tradition documentation confirm the existence of a sedan prototype built in June 1994. The documented build date places the sedan prototype within the production window of the RS2 Avant, indicating that development experimentation continued even after series production had commenced.
Externally, the prototype featured hallmark RS2 components such as Porsche Cup 17-inch wheels, Porsche-sourced Brembo braking hardware, and RS-specific chassis tuning. Unlike the production Avant, however, the sedan configuration was never approved for series manufacture.
Audi and Porsche evaluated multiple body configurations before finalizing the Avant estate as the sole production variant.
This RS2 appears virtually production ready in dark metallic grey paint unlike the RS2 Coupé (B4) prototype and RS4 (C4) sedans that have been referenced in the past. Some legend places it as associated with Ferdinand Piëch who may have used the car in some capacity at some point. It has been seen at times with a registration plate suggesting it did see at least some road use.
The car primarily resides with Audi Tradition and specifically their Ingolstadt-based collection. It does appear with some regularity at events and in special displays or the rotating paternoster display at Audi museum mobile.
The 2.2-liter 20-valve turbocharged inline five-cylinder engine formed the technical basis of the prototype. Porsche’s involvement included intake and exhaust revisions, turbocharger optimization, and chassis calibration work. The development cars served as test beds for drivetrain refinement, cooling improvements, and braking validation prior to the RS2 Avant’s public debut at the 1993 Frankfurt Motor Show.
Ultimately, Audi elected to produce the RS2 exclusively as an Avant, positioning it as a high-performance estate rather than a sedan. The limousine prototype remains an important part of RS development history, illustrating that the RS2 program initially explored broader model applications before narrowing its production focus.
PHOTO GALLERY
