Their tech isn't just the solar, they've optimized the car solely for efficiency. They claim their car can get 10 mi/kwh, so with 700W of solar panels they can get up to 40 miles of charge per day with just the solar. By contrast, the solar panels that are available on the new Prius get 4 miles of charge per day.

Now that their production-intent vehicles are just starting to be built up, I'm eagerly awaiting their actual test data that hopefully verifies their claims on efficiency, range, crash safety, etc. but we'll see 🤞 I really hope they succeed.