Have a look at this new electric quad style car, developed in south of France, it looks great.
The French - and many of the EU have a category of light car that we do not recognise.
Quadracycles - which can be driven with a moped license, and in some countries at 14 years of age.
In principal they are similar to the early Japanese K class cars, ultralight cars, engine size and speed governed.
en.wikipedia.org/wiki/Motorised_quadricycle#Light_quadricycles_.28L6e.29
stephen
A comfy ride as long as you don't try and corner too quickly. Allowing the driver's body weight to swing as a pendulum towards the outside wheel, (and rise) is not the best for weight distribution going through a corner. If you really need to keep the driver comfortably vertical it would be best to lower that longitudinal axis to below his bum and keep him vertical with a computer-controlled stepper motor.
They found out along time ago that for best cornering you need to keep riders low and towards the inside wheels. Here they use muscle power to get movable weight in the best position for cornering.