http://comediansincarsgettingcoffee.com/I haven't watched it yet, but the concept seems pretty cool. If you're a fan of Seinfeld, I guess.
First episode is Larry David, and the one after that is Ricky Gervais, although it's not out yet. I guess it's kinda similar to what Red Dwarf's Kryton (I forget his name - he got really irritating on Twitter so I unfollowed and removed him from my memory) did, but in 'MERICA! Also, he talks a bit about the car they're driving, seeing as he's into his cars. Well, Porsches.
Interestingly, it's completely ad-free. I don't know anything about the project other than what I've said above, but I'm wondering if he plans to monetise it eventually, he's happy with his millions, or he's just going to release a DVD at some point and is happy to let the web version go for free.