Thanks for the note "decaf". I plan to call the dealer tomorrow just to get a feel what they will say.
To Emilner, I (wife does not care much) also wanted to get the 550ix in four years. At least that is the plan. We will do the European delivery next time. 2 batteries in 12000 miles... Wow! Did you had to pay for it or it is covered under warranty? I seriously don't want this to be a yearly thing...