As you say, doesn't matter what is around the corner. But you are wrong in why it does not matter. Doesn't matter because no matter the density one can have a 300 mile EV carrying 4 in comfort for under 300 Wh/mile, today.Does not matter who is developing an EV. The design is still limited by the limited energy density and the high cost of the batteries . Don't bother us with the story that new high energy density batteries are just around the corner.
For estimating purposes gasoline is $3.00/gallon and electricity is $0.10/kWh. (Those are higher prices than I pay.)
300 Wh/mile at $0.10/kWh is $0.03/mile.
$3.00/gallon at $0.03/mile is 100 miles for the same cost as a gallon of gasoline. So I keep forgetting just what is it that renders today's EV technology unviable "until a big battery breakthrough!" ??
A 263 mile, 140 MPH, 5.3 seconds to 60 MPH, Tesla Model 3 is $39,900. Some states have incentives, Federal "subsidies" expired in 2016. No "battery breakthrough" is needed. The technology is here.
2021 Tesla Model 3 Standard Range Plus RWD is accurately EPA rated 240Wh/mile. So rather than 3¢/mile used in calculations above it is only 2.4¢/mile. 12,000 miles/year would be $288. At $3/gallon and 30 MPG $1200. Savings of $7296 over 8 years. 16 oil changes at $50 each saves another $800. Not going to compete with cheap under-$20k cars on cost but the Model 3 is a much nicer car and competes competitively with similar trim.