Here's a side view

What's interesting here is that in the past, Eindhoven has typically had a flat roof, but for this car, they've decided to go with a curved roof (presumably for aerodynamics). Typically teams have tried to avoid curves in their designs due to manufacturing tolerances (and the possibility of accidentally creating compound curves) and the ability to better normalize your array. Presumably they've done analysis on their design and determined that the gains there were not worth it.

Aerodynamics

Stella Vie supposedly has 9% less drag than Stella Lux, and 20% less drag than the original Stella.

Dynamics

Performance

Note: At WSC 2017, they used 48 kWh of energy (while carrying an average of 3.4 passengers) to drive 3021 km, driving at an average speed of 70 km/h.

Note: According to Ericsson sponsorship post, they cite using 48 kWh / km when carrying 3 to 5 people at a time when travelling at 69 km/h, which seems really high.

Array

They use interdigitated back-contact (IBC) cells, which prevent shading losses from the metal grid of wires at the front side connect to the negative contacts of the cell in typical cells. In IBC cells, the positive and negative contacts are all positioned at the rear side of the cell.

Battery Pack

Motors

Motor Controllers

Telemetry

Extras

Like previous cars, they use Ericsson’s Solar Navigator in-car app that provides aggregated data on weather, traffic and car performance. However, this iteration also includes topography and elevation data, which was applied to ensure the car was in the sun as much as possible, both on the road and when parked. It's basically a heavily-customized version of a commercial app that Ericsson provides (and their Connected Urban Transport platform) as part of their partnership.

This application also considers (near) real-time information from public traffic information, other road vehicles, and connect sensors to traffic light infrastructure. They have a screen that indicates to drivers when they should brake and brake or accelerate (in order to improve driving efficiency). Moreover, the app takes into account traffic light timings, and notifies the driver how long they have before the light changes.