Join Date: May 2019
Location: Montreal, Canada
Just to report on my limited experiment with the Kayak. I pulled the journey logs (pretty cool) and did some math since the journey gets broken each time you stop. We have some land (we hope to build on) about 130km from the city. We drove out there a couple of weeks ago without the Kayak, so 2 passengers+dog. Second trip was me alone with the Kayak.
Trip 1: Distance (round trip)=260km, Average speed (city traffic, then highway and country roads)=78.2km/hr (48.9mph). Energy efficiency=23.4kW/100km (37.4kW/100miles).
Trip 2: Distance (round trip)=256.1, Average speed (city traffic, then highway and country roads)=73.3km/hr (45.8mph). Energy efficiency=24.6kW/100km (39.4kW/100miles).
So the differences were : I drove alone on the 2nd trip and a bit slower on the way (100km/hr instead of 110-120), the AC may not have been going as hard (smart climate only blowing in the occupied seat), I may have had the thermostat a degree higher on trip 2, but ran the seat cooler almost all the time (on both trips). Both days were calm wind days (and since they were round trips, should even out mostly).
So for this trip at least, the Kayak did not have a huge impact (~5%), or at least not larger than the other pseudo-random settings like AC, speed etc...