Nobody.
Although solar powered "cars" have been built for demonstrations and competitions, they are not safe or practical for use on public highways. Even if you keep your car in desert country, the amount of solar energy that falls on it each day would be a lot less than what is used each day by most cars. Before we can have solar powered cars, we will have to change our expectations of what a "car" is and what it can do for us.
Usually universities build a solar powered car for a race. It gives their design and technology students the chance to put their theories into practice.
Martifer Solar does it. P
All the french car manufactures are: Citroen, Peugoet, Hommell, Renault and Alpine
The country of Germany manufactures the Audi car brand.
No money.
Toyota.
Nissan, Ford
SunRay Engineering manufactures an outstanding solar powered pool pump system. See it at SunRayUS.com.
A solar engine for a solar car is actually an electric motor. Solar cells on a solar car collect solar energy, which is then sent to a battery or battery pack in the form of DC current. This energy is then used to power the solar car.
german car maker (Volkswagen)
Johnson Controls
Most manufactures do it. They use catalic converters.