Earlier quoted context omitted.
No, Porsche added gears for better efficiency. Only applicable at autobahn speeds --- which explains why Porsche is the only manufacturer thus far to see a need for this. I seriously doubt this will become typical --- simply due to cost reasons. Battery cooling I'm not sure though, it's still circulating right No, natural thermal convention in most cases.
Oh ok the liquid is passively cooled ? what the "heatsink" here ? the lower surface of the pack ?
Yes. In some cases, the battery pack also serves as a structural component.
https://electrek.co/2021/01/19/tesla-structural-battery-pack...