RA XI is making its debut at ASC 2021 soon! Here’s a throwback to some of our favorite solar cars from over the years. Which RA installment of the past was your favorite?
![](https://www.principiasolarcar.com/wp-content/uploads/2021/07/throwback.png)
RA XI is making its debut at ASC 2021 soon! Here’s a throwback to some of our favorite solar cars from over the years. Which RA installment of the past was your favorite?