Plenty of companies are working on developing rovers for future Moon and Mars missions. Recently, NASA showcased a new Mars Rover Concept Vehicle at the Kennedy Space Center. Its powerful motors are powered by battery and solar panels.
— NASA_SLS (@NASA_SLS) June 6, 2017
This is not the final version that will show up on Mars. But some of the features will be incorporated into that. Automobile Mag has more on the story here.