Their quote:
> generates electricity equivalent to 1,800 km of driving distance per year
Is too vague. Is this taking away the distance lost from added panel weight? What are the assumptions (e.g. how many hours of light/day)? Is this electricity-distance at exit of the panel or after storage<->release from the batteries? What is the panel efficiency curve over the vehicles' life (e.g. do you have to replace/refurb the panel)?
Obviously we would all love for this to work, we get cooler cars in the summer and bonus driving range. But it isn't exactly the first time vehicle makers have tried it and have been panned (or it has been outright vaporware) previously.
EVs work. We know they work. They can work from renewables, including solar. The questions here are around onboard solar specifically and if they actually make sense (and frankly if this is a marketing gimmick).