Adrian wrote:
"Doctor Drivel" gurgled happily, sounding much like
they were saying:

But how do you heat an electric car? Not much fun using a totally
unheated behicle in the winter. Even keeping the screens clear becomes
a bit of a problem.

Some earlier electric cars had petrol burners to warm the interior. Is
that included in the fuel efficiency claimed?

There is zero insulation in a car.

Rubbish. I've got the headlining out of the Saab at the moment to re-trim
it, and - trust me on this - it makes a BIG difference.

Anyway, I thought car weights needed to come down, not go up?

Insulation for heat, is not heavy. Polystrene foam, whilst not ideal
safety wise (fire) is an indication of how light heat insulants can be.

You need a LOT of heavy insulation for sound though. Fortunately
electric motors are quiet, and do not vibrate a lot. And the major noise
tends to be a high pitched whine, which is far easier to insulate against.

Double glazed windows are more likely to be the heavy aspect.