I actually liked where BMW was in the early 1990s. Right now, there are too many letter designations M, X, Z, etc. It gets odd when you have a Z or an X that might also be an M. See what I mean. Gets confusing.<P>I liked where Volvo was also, but they had copyright issues with other companies, 740, 850, 240 etc. (BMW and Nissan nomenclature also). I like doing the motor designation though, 2.4T, T-5, T-6, etc. I think that is more descriptive than GL, DL etc.<P>I like where Audi is. The A series is for teh normal car, the S is the hot version and the RS is the super hot version. They should apply the allroad name to any car that has the air suspension and Cross Country style treatment to it (i.e. an A4 allroad or an A3 allroad). <P>There's also room for expansion. For instance, if they did an SUV they could call it the A5, A7 or A9.<P>Where they get weak is sportscars. The TT uses a name carried over from the NSU brand, and, while cool, doesn't really fit the Audi naming philosophy. Further, they're working on an Audi version of the new baby Lamborghini, and that is rumored to be called RSR, which I don't really follow either.