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In 1995, Chrysler introduced the Dodge Viper GTS-R, a limited-production racing car strictly intended for worldwide GT-class competition. The standard powertrain was a 525-horsepower 8.0 liter V-10, with 650- or 750-horsepower engines available as an option. It clinched the 1997 FIA GT2 championship and the 1998 24 Hours of Le Mans in the GT2 Class.
To publicize this achievement, Chrysler built 100 street-legal 1998 GT2 Championship Edition Vipers. It was painted the same way as the GTS-R, with an aerodynamics package of fascia dive plates, black sill ground effects, a front splitter and rear wing. An enhanced powertrain (see the ACR description) raised performance to 460 hp @ 5200 rpm from 450 hp @5200 rpm and increased torque to 500 ft/lb at 3600 rpm from 490 ft/lb at 3700 rpm.
Special badging and graphics included a "Viper GTS-R" banner on the windshield and hood sides and an American flag appeared on the upper quarter panel with "FIA GT2 Champion" underneath. 18-inch Michelin MXX3 tires and unique 18-inch one-piece wheels complete with a chrome Viper snake head logo on the center caps completed the visibility options.
The interior was black with blue accents on door inserts, bolsters, and the center console and parking brake. A dash plaque highlighting the commemorative series and vehicle identification number (VIN) was mounted on the center console. The interior came with a five-point restraint system, identical to the restraint system used by Viper Team ORECA, the France-based factory race team that captured both championships. The retail price was $85,200 including destination.
The 1999 Dodge Viper ACR (American Club Racer) was a hybrid of the GTS-R and the standard Viper. The major changes to make these vehicles race-ready were more power, lower weight, and refined handling:
The ACR had the interior enhancements of standard Vipers: power sideview mirrors, cloth-covered sun visors, a satin aluminum finish on gauge trim rings, parking brake handle and release button, shift lever shaft, gearshift knob and inside door release handles.
The ACR concept started with the Dodge Neon; the idea was to provide racing enthusiasts with a reasonably priced entry to Showroom Stock classes. Neon ACRs won the Sports Car Club of America (SCCA) Showroom Stock/C class in 1995, 1996 and 1997. Neon drivers also scored 127 wins and 311 top-three finishes in 216 national events; one Pro Rally production-class championship and five Solo Two national championships in 1997.
Special ACR badging and graphics including commemorative dash plate. Five-point restraint system, K&N air cleaner, smooth air cleaner hoses, one-piece 18-inch BBS wheels with chrome Viper Head center caps and Michelin Pilot Sport tires. Vents replaced driving lamps. A/C system/compressor deleted, audio system deleted, Koni racing shocks and Meritor springs. A/C and audio systems were optional.
Analog speedometer, odometer, trip odometer, tachometer, voltmeter, oil pressure, coolant temperature and fuel gauges. Low oil pressure, coolant temperature, air bags, high beam, seatbelt, brake system and service engine soon, 2-3 shift lockout, battery voltage, door ajar, turn signals and security alarm indicator lights
Resin transfer molded (RTM) composite body with sheet-molded compound (SMC) hood, backbone tubular steel space frame with center spine and separate cowl structure. Full-access forward-opening hood/fender assembly
Manual, 6-speed overdrive transmission, synchronized in all gears; electronic 1-4 skip-shift and reverse lockout mechanisms. Aluminum housing, 12.2-inch hydraulic single dry-disc clutch. Gear ratios:
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