For the 1986 model year the Grand National has a completely redesigned engine with an improved turbo-charger. The computer fuel management system has been greatly improved, and, along with a large number of other lesser upgrades to complete the package. The Gran National luxury muscle car is under-rated by Buick at 235 hp (175.24 kW) developed and 335 lbs (454Nm) torque is put to the wheels.
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