2017 3.5 EcoBoost vs 2018 Denali 6.2

2017 F-150 10-speed 3.5L EcoBoost (cold air intake) — driver and 1 passenger
2018 Sierra Denali 8-speed 6.2L (owner says it’s stock) — driver only

Denali got the jump on F-150

Raced in 4WD

4000 ft. of elevation