still waiting ..... I bought my 35d in Dec so also a little pissed that the dealer was not so open about the pending 40d despite my research telling me otherwise .. still .. I agree that in the real world driving there's nothing substantial ...but I am wondering now if the 50i would be worth the money now ..I might take an x6 50i out to see what the engine performs like in terms of sound/acceleration etc etc .... I didnt like the 4.8 so much as it just sounded too 'V8' like over a turbo engine ..but the 50i may be different? Also going to the new 35i from my current 35d just may not be worth it in the short term ...