Towing an EV

[Draigflag]

This has probably already been discussed in vast detail elsewhere, but it's the first time I thought of such an idea today. We've all seen large campervans and RV's towing smaller cars to be used whilst on vacation. What if that car was electric, and there was a "tow setting" Where the software allowed gentle regenerative braking whilst being towed, so when you reach your destination, you have a full battery?

The extra drag would be at the expense of more diesel/gas in the RV, but the software would detect when the battery was fully charged and allow the car being towed to freewheel once it's full. Obviously the car would be towed extremely close to the RV, so aerodynamics would not matter anyway. Would this be a possibility? I think it's a great idea if it works.