Originally Posted by Ascension
Maybe you're joking, but in case you're not:
Here are some of the engine options available for each model:
E90: 316i, 318i, 318d, 320i, 320si, 320d, 323i, 325i, 330i, 330d, 335i, 335d
E91: 320i, 320d, 323i, 325i, 330i, 330d, 335i, 335d
E92: 325i, 330i, 330d, 335i, 335d
...and this is not even a complete list.
Now do you understand why it's a bad idea to talk about "the E92 engine"?