Don't know if everyone knows this, but Lithium batteries have a sweet spot in the charging curve of 2C. C is the capacity of the battery. The lower the better, but basically with the drop off of the curve towards the end of charging it means that 0-80 (or more likely 10-80) is by definition 1/2 hour (capacity / charge power = C / (2C) = 1/2). Batteries that charge faster tend to have better cooling, and are large enough not to care about dropping cycles. The SE is 33.6kWh (actual), so 50kW is the nearest common charge rate. A 75kWh battery gets 150kW etc. Some companies err on the side of caution and lower the max (eg. MINI 67.2kW at 2C => 50kW), and some go for it (normally Tesla).
That is why most cars have give or take 1/2 hour charge times. The more exotics go higher voltage / lower current to minimise heat and push the charge over 2C to something like 4C. That gives (drummroll) a 1/4 hour 10-80.
