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MB B250e lease is around $400/mo. BMW i3 lease is under $300 right now. Tesla lease starts at $1,000.

Knock about $200 a month off the Tesla lease for TCO based on Delta between electricity cost in petroleum fuel cost.

Edit: i'm wrong. See below.

Edit 2: In quite a few places, you can get time of day metering, where you pay lower rates for electricity at night.

In Chicago, I pay $0.01/kwh between midnight and 5am; its essentially free to charge my Model S (it's slightly more at my place in Tampa, ~$0.06/kwh at all hours).

Both the B250e and i3 are electric as well. The B250e actually uses a motor from Tesla.

My mistake! Thanks for correcting me.

The national average cost for gas is $2.67/gallon, Electricity $0.12/kwh. Based entirely on fuel costs, the Model S 85 costs $0.04/mile and the 20 mpg BMW M4 costs $0.13/mile. In order to save $200/month on fuel with the tesla, you'd have to drive 2200 miles a month. In the area I live, where gas is cheaper than average and electricity is almost twice as expensive, that number is 5000 miles/month.

That gas price should be closer to $3.16 at the moment. If we're talking about the luxury car market, it's far more likely the vehicle is going to be consuming premium gasoline.

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