"Jim GM4DHJ ..." wrote in message
...
On 25/08/2019 17:53, misterroy wrote:
Idly musing about life at work the other day, electric cars came up, and
their range. We struck upon a solution. A trailer. A trailer with a
diesel generator on it, the electricity going back to the car. Could we
run it on red diesel, and not have to pay the congestion charge?

It would have to be some generator ...

Nope, there is at least one electric car that has
an optional generator that goes in the car itself.