On Sunday, 10 March 2019 02:15:56 UTC, Johnny B Good wrote:
On Sat, 09 Mar 2019 10:23:31 +0000, dennis@home wrote:

====snip====


25kW for motor running a car at about 35-40mph.

More like 2 to 5 KW at a steady 35 to 40mph on the level...

So five miles will use about 8 minutes at 25kW.
That is about 3.4 kWHr.

Assume 5KW consumption and 35mph. That's 8.57 minutes which works out to
some 0.7KWH's worth of energy from the battery.

You haven't allowed for energy recovery by regeneration.
But going fast is not good.
Definitely not motorways.
Low ambient temperature reduces range (affects batteries).
Some cars have heat pumps for cab heating.