Question about the weekly Forzathon challenge

When there is a focus on two different cars like this weeks challenge do I have to stick with just one of them or can I switch back and forth?

You have to pick one and stick with it and then do the challenges in order, but if you visit YouTube you’ll see that there are many ways to shortcut the races and expectations the game places on you to complete them. Search YouTube on this current season and you’ll see many people have posted custom maps and routes to help you complete them in the easiest possible way, but pick one car and stick with it.

I don’t think you have to pick one and stick with it, but I’ve never tried it. If they do one like this again, maybe I’ll try it.

You do NOT have to pick one and stick with it. I even ran different cars for different races in the same chapter and it counted just fine.

I’ve used both cars