Yea man thats actuall a great idea. From what I hear the limited availability of the IS is making it a collectors item...Depending on the condition of your 335i you could do really well with the switch. I haven't heard about next years production in terms of how many will be made. My old 335i lemoned so they gave me a ridiculously good deal on my IS and I had it one month after I ordered it one year ago..I didn't even see another one on the road until at least 4 months later! It is a great car and I drive it over my other cars that I shelled out even more for.
2011 BMW 335is DCT/19" 225M Bridgestone Potenza RE050A/Alpine White/Black Dakota/Dark Glacier Aluminum/Everything/Premium Package/Convenience Package/Cold Weather Package/ /Navigation System/JL Audio500/1w12in JLw3/20% Tint