How many here own a Tesla that can do some experiments and gather data?.
Years ago on a show called Car Talk, a public broadcasting radio show in America, a call-in:
I have a Toyota Prius, it seems I get much less gas mileage with a bike rack and bikes on. The hosts said to try it with the bikes inside. Was it the weight or the aerodynamics? Never heard the result.
My old 2017 60kwh model s power from the house was lost in our dithering of other things as cleaning oven that month, a/c basement dehumidifier, how many large tektronix scopes I was playing with.
no charger either, just branched it across our split-phase for 13 amps at 240v. Been a year I've had the 50 amp cable and stuff for licensed sparky to come in. Working on upgrading all the house old wiring before the town inspection.
The epa on my car is 101 highway, 99 city. So coal burner wise, equal to 5 mustang muscle cars less and better performance and longevity.
And no noise drama. Have the cheapest stereo too, no noise to drown out while dragging Maserite, etc.