MSRP $22,015, Thompsons Discount $527, Sale Price $21,488, Factory Rebate $4,500, Net Price after Incentives $16,988.. or Choose 0% apr Financing for 72 months In Lieu Of Factory Rebate, On Credit Approval, Offer Expires 11/01/2010. ...New 2010 GMC Sierra 1500 Regular Cab Work Truck. Powered By The 4.3L Vortec V6 Engine, Automatic Transmission, Air Conditioning, AM/FM Stereo With CD, 40/20/40 Split Bench Seat, Tilt Wheel, Rubberized Vinyl Floor Covering, Daytine Running Lights, Solar Ray Tinted Glass, Chrome Rear Bumper, Head Curtain Side Airbags With Rollover Protection. Call or Email, Thompsons Buick/GMC Trucks.