It's just a concept car, but they're thinking about it...
The RLV is a lightweight, aluminum bodied, two-seat tandem vehicle that features an innovative collapsible track system and a split powertrain.
Most 'Angelenos' agree that only two speeds exist in LA: 5 and 75mph. Also, rush hour and no rush hour, traffic and no traffic. Thus, 'tortoise and hare'...slow and fast.
...The vehicle offers a manual/pedal power mode and an automatic/electric mode. The manual/pedal mode is hydraulically driven and can be used in many different scenarios. Primarily, it's used while in heavy, 'stop and go' traffic where the vehicle produces zero emissions. Also, the pedal mode is suitable for boardwalk, sidewalk, neighborhood, and beach applications. The manual/pedal mode also promotes LA's lifestyle of health and fitness...all while functionally recharging the electric motor batteries. The automatic/electric mode is used at higher speeds and in light traffic conditions. As vehicle speed increases, the track widens for more stability via a unique telescopic axle. The vehicle also features a removable, translucent bio-plastic body paneling. The seats in the RLV are composed of wicker and bio-plastics while the floorboard is constructed of bamboo and aluminum.
See here.
OK, if they build it AND I can get one, I'll believe in Jesus...