2001 buick regal supercharged. 2818 highwaycity mpg 240 hp horsepower 38 l liter v6 engine 4 doors 4 wheel abs brakes. 2001 buick regal gs supercharged 38 v6 from the factory specs are 240hp 280 tq gas mileage 23 city 28 highway mods. See the 2001 buick regal price range expert review consumer reviews safety ratings and listings near you. Racing spark plugs wires ignition coil box computer cold air intake.