Re: Flight from Basel - car or train?
I wouldn't risk driving through Basel or Lörrach at that hour -- it's rush hour, you will be delayed. I'd take the train. Arriving at the airport at 9:00 should be fine -- you will have checked in online already (I think you have to!), all you need to do is drop your bags if you have any. BSL is tiny, you'll whiz through in a few minutes. (My record from arrival at check-in desk to gate is 4 minutes -- but that wasn't at rush hour.)
Plus, no parking hassles or costs!