constructed largely out of carbon-fiber, reinforced by welded aluminium tubing. Stella is not only road-legal in Europe, having been deemed safe and approved for use on public roads by the (RDW) — the Eindhoven team were also able to put a California license-plate on the car for a demonstration run from Los Angeles to San Francisco in 2014. Stella's publicly accessible road registration information lists a cost price of €1,272,327. One of Solar Team Eindhoven's sponsors, NXP Semiconductors, contributed to the vehicle's electronics, with a concept to make roads safer and reduce air pollution by means of proactive communication between cars, as well as with traffic signals. Stella Lux The second Stella car, built in 2015, improved on its predecessor in a few respects. Frontal surface area was reduced by a catamaran style air tunnel indented in the bottom of the car, along its centerline. Further, Stella Lux has a longer wheelbase and four conventionally opening doors instead of the rudimentary gull-wing doors of the first car. Aside from being more aerodynamic, the new car was also considered somewhat better-looking. Stella Lux finished after 39 hours and 23 minutes of racing, resulting in a slightly improved average speed of over the course, even though external charging had been reduced to 30 kWh for the 2015 race. During the race, the car set a distance record by driving on a single charge, with an average speed of some , and all the while having two people on board. The car is estimated to have theoretically infinite range when traveling at in good sunlight. Stella Lux incorporates Vehicle-to-everything (V2X) vehicular communication systems supplied by main sponsor NXP Semiconductors, that help the car and the team to optimize their performance, for instance through the Solar Navigator system, which collects weather data and offers suggestions for an “optimal route” while driving. Power is provided by two in-wheel axial flux motors which can deliver up to 15 kW, while the wheels they power are Schwalbe Solar Energizer 90/80/16s. Stella Vie For the 2017 edition of the World Solar Challenge, a new Stella car has been designed, sporting five seats instead of four. The new car is longer at and narrower (), though the weight remains unchanged at . The Stella Vie's profile shows a continuous swooping curve from the nose to the boat-tail rear end, that improves the car's aerodynamics, but reduces its solar cell