That seems like an odd comparison to me. Is it normal to compare the Top Tier Anything to the Average of another thing?
Top Tier Car 0-60 Times vs Average Car Costs? IDK, it doesn't seem to contain any REAL information. Shouldn't the comparison be the costs of the SAME cars and not include cars that aren't top tier?
What am I not getting?
Cost is $139/kWh, which on a scale of 0-9000, is pretty close to zero historically. https://about.bnef.com/blog/lithium-ion-battery-pack-prices-...
Actually, if you know the details of the development of consumer cars, you'll find that advances and levels of performance in top tier cars tends to trickle down into average cars. Not without some dilution, but that's a definite trend! So things like disc brakes, fuel injection, microprocessor control.
This sort of thing definitely happens with batteries over time. It's a way of peeking into the future. Just fudge factor for a little dilution.