I can't find a consistent rating for the hp of my car. Edmunds & the like say 310hp, but the research I'm doing on the specific engine (which doesn't even exist in some places?) says either 305 or 330. And no, it's not gross vs net or hp vs bhp or any of that silliness. Can anyone help me? It's not actually "important", but it's driving me nuts! I can't even figure out for sure which cars had the 5 valves per cylinder on the V8. Some sights say post-2000, some say post-2002, and some say only the S8 ever had it. This, combine with the fact that I thought I bought a 2000 A8 and it turned out to be a 2001 means I am very confused.