This 2024 GMC SIERRA 2500 4WD CREW CAB 159" DENALI in GBA ONYX BLACK is available now. ENGINE: 8 Cylinder Engine TRANSMISSION: 10-Speed A/T ** MPG CITY: MPG HWY: Some manufacturer incentives may not display in this listing. Check our dedicated Chevrolet Buick GMC website at www.alanjaychevrolet.com to insure you see ALL AVAILABLE INCENTIVES. The Canyon and Sierra are winners of the KBB Best Resale Value Award. GMC was the winner of the KBB Brand Image Award. Welcome to Central Florida's only Full Line GM dealer. We sell and service all four GM brands. Serving residents of Sebring, Avon Park, Lake Placid, Okeechobee and Lake Wales, for 30+ years. Alan Jay Chevrolet Buick GMC Cadillac is your trusted GM dealer.