Model S don't like big booty and I cannot lie

[Kristoffer Helle]

Probably some bushings that's need a change. Big difference with weight in the rear

 

[Kristoffer Helle]

Can't get over 50mph in a long deep hill.
Just because of one bad bushings
Not a big difference without weight in the back

 

[clostridium]

Okay, it seems that there *is* something going on here.

I propose that you put the bags of sand back in the car -- but in the frunk this time -- and repeat your experiment.
Let's see if your power consumption:
[ goes up ],
[ stays the same ], or
[ goes down ].

I'm gonna guess that it [goes down] due to a sublime difference in aerodynamics, or maybe a sublime difference in weight distribution that the car's computer perceives, and overcorrects. Because the absolute difference in weight shouldn't change the game so much.

-- Ardie.
"No, you can't sit back there. It will ruin my mileage. Sit up front with me."

Would also be interesting to then spread the weight between front and rear - same total weight just distributed differently.

I'm also very surprised by the big difference with a relatively small extra weight. I've been hauling a fair amount of extra weight in my car recently that's more than that litter and have been pleasantly surprised at how little of a difference it makes. It seems to be less than the impact in my prior ICE car actually.