Think thats a 276. Not sure at that angle but I think that is what they are. Here's a link to some of the E89 wheel styles.
http://www.bmwstylewheels.com/Z/Z4-E89
As far as the 293s that will arrive Friday, I might be having second thoughts. Maybe I'll keep both for a while and swap them out a couple times. Tread on the 325s is good for a few thousand miles yet and I'll eventually sell one of the sets. If I go with the 325s I will just need to switch the tires from the 293s.