While we are still waiting for Hyperloop to become the reality of our daily transport, there is already an operational railcar in Europe and it's powered exclusively by its own solar panels.
More specifically, the locally produced Hungarian railcar with no overhead electric cables carries passengers on the 12 km line between Királyrét and Kismaros in Hungary and it has been doing so since May 2013, when it was unveiled to the public!
The 8275 mm long and 2000 mm wide pollution-free railcar has seats for 32 passengers has a top speed of 25 km/h. The onboard battery is powered by 9.9 m2 of photovoltaic panels (with estimated lifetime of between 20-40 years), which are located on its roof, but it can also get its juice from outer electric connectors. According to Budapest Times, the train also boasts electric recovery brakes, similar to those in Formula 1 racing cars - they can recover and store part of the energy spent during braking and use it to propel the train later on. It is said to suffice for up to four or five rides!
It's not as fast as Hyperloop will once be, but it doesn't even have to be - Vili offers a wonderful travelling experience, where something new and something old have been joined in perfect harmony, making it a tourist attraction as well as an eco-friendly ride!