I had a bmw 5 series under lease, I also could not take it to other than bmw service center and can't fix it myself ( I am sure 99% of new premium car owners don't fix their cars themselves ) and everytime I went to a bmw service center it was a minimum of 2 days. One time it took 2 weeks to get something related to electronics fixed. My friend owns Chevy Bolt and he sends it for a service almost every other month, something new keeps breaking and he is very i satisfied with his car. So every case is different I guess