Thunderstorm Gray 2025 GMC Sierra 1500 Pro 4WD 8-Speed Automatic 2.7L I4 Turbocharged DOHC 16V LEV3-SULEV30 310hp 8-Speed Automatic, 4WD, Black Cloth. Price includes: $1250 - Bonus Cash. Exp. 04/30/2025 $2750 - Purchase Allowance. Exp. 04/30/2025