The Buick Turbo Engine Group developed an intercooler and a sequential port fuel injection system that noticeably increased both the horsepower and the torque of the Grand National. The Buick Grand National was daft but brilliant. Each nook and cranny of the exterior was finished in jet black. http://www.automobile-catalog.com/car/1987/317510/buick_regal_grand_national_coupe.html The rarest Grand National is the original 1982 model, with only 215 produced. Welcome back! 0-100 km/h 7.8 s, 1986 Bitter SC Coupe 39 EEurope 224 km/h / 139 mphest. In order to give this legendary platform a fitting send-off, Buick engineers got to work to create what some have called one of the most menacing cars to ever roll out of Detroit. - click the button below:Tire size:1986 Buick Regal Grand National Coupe standard and alternative wheel and tire sizes. 1,000 Horsepower! 1986 Buick Grand National | Barn Finds The 1987 Grand National was equipped with a sequential fuel injection 3.8-liter turbocharged V6 mated to a four-speed automatic transmission. However, there are a few key differences: Unsurprisingly, the 547 original GNXs are rare and desirable today a mint condition GNX recently sold for $200,000. McLaren agreed and the heart of the car, named the GNX, became the 276-hp, blueprinted turbo V-6. Quarter mile, but it has class and comfort as well. The Buick Grand National and GNX's History Told by its Creators These increases had a significant impact on performance. This Grand National will certainly be a conversation piece at ones local car show. While its interior is an eyesore by todays standards, the right angles and upright binnacles covered in a leather-print vinyl used to be the thing among the 80s motorheads. Future Buick boss Reuss returned from a stint at Chevrolet in 1975 as chief engineer and soon called Baker into his office. Horsepower net:175 kW / 238 PS / 235 hp (SAE net) / 4000Torque net:447 Nm / 330 ft-lb / 2400Horsepower gross: Torque gross: Car power to weight ratio net: 114.2 watt/kg / 51.8 watt/lbCar power to weight ratio gross: Car weight to power ratio net: 8.8 kg/kW / 6.4 kg/PS / 14.4 lbs/hpCar weight to power ratio gross: Full engine data: horsepower/torque rpm, etc.