Trek Domane SL5 vs Aero Bike: SPEED TEST

CORRECTION: At 4:36 I mention the difference in wattage was 14 watts, but I meant to say 18 watts!
I compare the 2023 Trek Domane SL5 against in a speed test against an all out aero race bike, in this case, the 2020 Cervelo S3. The results really surprised me.
The Trek Domane was almost just as fast as the Cervelo S3 aero race bike, despite the Trek having a full stack of spacers and an upwards slanting stem. I think this is because I dressed it up with aero wheels, race tires, and an aero handlebar, which just goes to show how versatile that bike can be.