Performance, power and 0-100 km/h
2025 GMC Sierra EV Denali Edition 1 has the quicker recorded 0-100 km/h time at 4.5 seconds, compared with 6.5 seconds for 2025 GMC Sierra 1500 SLE 2.7L Turbo. 2025 GMC Sierra EV Denali Edition 1 has the higher listed output at 754 hp; 2025 GMC Sierra 1500 SLE 2.7L Turbo is rated at 310 hp, a difference of 444 hp. The torque figures follow 2025 GMC Sierra EV Denali Edition 1 at 1,064 Nm and 2025 GMC Sierra 1500 SLE 2.7L Turbo at 583 Nm. These figures describe straight-line potential only; they do not establish braking performance, ride quality, steering response or durability under repeated hard use.
Range, battery, charging and efficiency
Range and energy-use figures are either not shared by both cars or not directly comparable across these powertrain types.
Dimensions, cargo space and towing
2025 GMC Sierra EV Denali Edition 1 carries the higher towing rating at 4,354 kg, while 2025 GMC Sierra 1500 SLE 2.7L Turbo is listed at 4,173 kg. 2025 GMC Sierra EV Denali Edition 1 is 33 mm longer overall. Exterior size is not a benefit by itself: a longer body may create useful room, but cargo shape, rear-seat space and ease of parking still require a physical inspection.
Price and overall assessment
2025 GMC Sierra 1500 SLE 2.7L Turbo has the lower listed starting price at $44,900, compared with $99,990 for 2025 GMC Sierra EV Denali Edition 1. 2025 GMC Sierra EV Denali Edition 1 leads in more of the shared headline fields, but that is not a universal verdict: a buyer should weight price, performance, range and utility rather than simply count category wins. The assessment is based on the specifications shown here; it is not presented as a two-car road test.