[sudoshred]

For the type of buyer you describe this vehicle parked in the garage, to speculate, may be capable of doing double duty as an automated battery backup for the estate nearby to store energy during times of excess grid capacity and to discharge during periods of high demand or grid interuptions. I would be interested to know if the vehicle includes this capability, or if it could be easily modified to offer this capability. Probably is preferable to an onsite diesel generator for example even if it is not an exactly comparable situation, just due to lower local emissions.

[nradov]

You've got to be kidding. The people who can afford multiple luxury cars aren't going to mess around using them as backup batteries just to save a few bucks on generators for their mansions.

[sudoshred]

It not a killer feature, granted. I would be willing to bet that the cost of the engineering to develop and support this feature as a default capability for the fleet of all vehicles would be less than the value of energy saved ammortized over the lifetime of all relevant vehicles.