That means you deal twice the damage by increasing weight by only 20%. Seems in line with electric car weight difference.
A typical garbage truck has 2 or 3 axles. Let's assume 3 to be conservative. A fully loaded garbage truck weighs around 50,000 pounds. That's 16.6k pounds per axle, vs a Tesla Y's 2.2k pounds per axle.
Doing the math, a single garbage truck does as much road wear as ~3,300 teslas.
Seriously, a Model 3 is ~500 lbs heavier than Honda Accord, and a Model Y is significantly heavier than a Model 3.
But to your point, a bmw 430 is also around 500 pounds heavier than a Honda Accord. Nobody sees a BMW and freaks out about tire wear. But people seem to hyperfixate on any small negative of EVs.
At the heaviest weights, yes, but the heaviest Accord weight and the lightest 430i weight are only 148 lbs apart... and the Model Y can weigh in almost 400 lbs heavier than the heaviest of 430i's.
> Nobody sees a BMW and freaks out about tire wear.
You mean, so long as it's not an EV? ;-)
Seriously, nobody freaks out about a BMW 430i's tire wear, because that of the branding of the car. It's like freaking out over coffee increasing your heart rate.
> But people seem to hyperfixate on any small negative of EVs.
We're obviously talking to different people. At least the folks I know talk about how crazy heavier cars keep getting across the board (case in point: https://www.capitalone.com/cars/learn/finding-the-right-car/...).
The non performance models are similar as well, the current BMW 3141-4023 pounds (the AWD are of course on the heavier side, and the Tesla model 3 is 3814 pounds.
My guesstimate is if they can increase the energy density of batteries by 30-50% the weight penalty will disappear. Some of the reduction is the weight reduction of the battery and some is due to cascading effects on the rest of the car.
EVs are a couple hundred pounds heavier in average than an equivalent ICE car. In terms of road wear, it's still a rounding error compared to industrial trucks.