You don't think Americans care about cost savings, with how much they complain about gasoline prices?
I've never understood the thing about gas costs. It is oft complained about. And while it always seems to be a point of contention, a quick google search suggests the cost is ≈$200/mo on average¹. Rent and healthcare vastly outstrip that; groceries is more but not by as significant a factor.
Like the national debt and a thousand other things, it seems to be just a stick to beat the Democrats with, not something they actually care about when their team spikes both with a pointless war.
I think they do care about cost savings, and the near-universal retrenchment of car companies culling their EVs in the wake of the expiration of the $7,500 federal tax credit tells you that these vehicles do not save consumers money. If they did, people would still be clamoring to buy them.
American, you know, they care about AI, chips, and Ukraine ......
To an extent... but Culture Wars, Rolling Coal and owning the Libs is more important to a large minority.
The 10 bestselling vehicles in the US are: Pickup truck, Pickup truck, SUV, Pickup truck, Toyota Camry, Pickup truck, Electric SUV, SUV, Pickup truck, SUV.
Americans don't like having less money in their pocket - who does? - but it's pretty clear that for American car buyers, fuel efficiency is just one concern among many.
After all, a gallon of gas costs the same no matter how rich or poor you are. If government policy keeps fuel affordable for families in the 25th percentile ($41k annual household income) then a family in the 75th percentile ($153k household income) can easily afford the fuel needed to commute to their office job in a crew cab F150, if they so wish.
Of course, that 25th-percentile family's demand for fuel will be inelastic in the short term if their house is a 45 minute drive from their workplace. So when prices rise they'll really feel the crunch - and they'll make plenty of noise about it. But they ain't the ones buying brand new vehicles.