GeekMonthly.com has posted the first part of an interview with Tim, during which he discusses the green-screen process used to film the driving sequences on the show.
I've seen the promos, currently reading the interview. Just from seeing the promos, I agree with what Joss Whedon said about the show: "It should be on TV; TV would be grateful. I'm just sayin'."
I simply cannot wait to see this, I'm super duper excited! Tim Minear, you rule!