It could work, depending on your use case. For someone who only drives a couple miles a day and parks in the sun, they might need to charge less often or not a

It could work, depending on your use case. For someone who only drives a couple miles a day and parks in the sun, they might need to charge less often or not at all. If you're going on long road trips, it probably wouldn't help much. In that sense, solar isn't particularly useful for extending range (which is why you'd want a large battery in the first place), but it might make a big difference when it comes to how often you have to plug in to a charger.