Hi Stefan, thanks for interesting question.
Learning language while driving is a great idea. I actually did a course like that when learning French (I think the actuall title was Learn French in Your Car) even though I was not driving when I was learning from it 😀
These courses have got quite a lot of repetitions so they are quite effective for learning new vocabulary and they do not disctact from driving.
Such courses may be a bit boring after a while, so of course you can also listen to standard langauge podcasts.
In term of resources for courses "Learn language while driving" I would check Audible (If you do not want to pay the fll price, you can subscribe and get one audiobook or course per month for around $8).
I would also check Spotify as they may have free resources, sometime even the whole courses.
Spotify also have got podcasts but you can also check other podcast platforms like: Apple Podcasts, Stitcher or Overcast.