Agree 100% - the car traffic on SBH prior to Irma was getting crazy - I'm with you guys - if there was a easy to use, viable alternative I would totally use it - how much time of our vacation do we actually use the car? Let's be honest, we just use it for beaching, Marche runs and trips into Gustavia, therefore plugging up the streets. How great would it be to order a quick car with your phone?
Trolleys wouldn't work due to the topography, why doesn't an entrepreneur bring over a small fleet of electric cars and drivers and offer an on demand (Le Uber St Barth?) to pick up at hotels and villas with a circle to beaches, shopping and town? Imagine you can have more than 1 drink at Bonito without worrying about driving at night. I would use it instead of renting for sure...