Originally Posted by Alistair
The new MPG will be kW/m or energy used per mile (km for our EU/metric friends) to compare BEV to BEV. It does not seem to be happening yet but no doubt will. I have noticed things like the Cd of Tesla is very slippery.

BEV's will be judged by how many kW they use for a given distance. If you mix this with the £/kW you get a cost per mile for the energy. It is easy to do the same for MPG and cost per L or Gal. This is quite eye opening.

However the comments re lack of brake disc/pad use due to regenerative braking, lack of service costs for oil change etc amount to a noticeable difference when you run a ballistic lorry like my ML63 for example. I just had to do discs and pads front and rear and it came to £1200. A service is £800. Tax is £600 now.


It costs, using our domestic electricity tariff, 13.5p/unit to charge the Tesla.
The battery is a notional 80kwh, but Tesla state that 76.5kwh is available.
If I charge from 50% to 95% I'll need 38.43kwh = £4.78 for a fill up at home overnight. At a tesla Supercharger roughly twice that.

Either Way it is cheap.
My C63 Light weight tank took almost £85.00 to fill up for the same full tank. Servicing was £46.00 a month and I also had to replace the rear pads and disk at £850. That is after 20,000 miles.
Tax was also £600.00

Man maths or accountants maths the M3 ER AWD is good value motoring in a car that is simply a nice place to be, cheap driving and has the performance to embarrass most cars under £75k.




Peter,
66, 2016 Porsche Boxster S
No longer driving Tarka, the 2014 Plus 8...