From space age electric tuk tuks to poo-powered tuk tuks, the idea of a cleaner ride is nothing new. Pictured above is yet another alt-energy tuk tuk, this one from a few years ago in Bangkok.

There’s a new tuk-tuk zipping around town. It’s Buffalo’s second commercial tuk-tuk, the first being the roaming command center for Tuk Tea. This new vehicle is in the business of travel ...