I've got a 2010 2.0 Sport with 27K. When I bought it, paid extra 5K to extend full warranty (battery pack and rest of car) for add'l 36mo/36K miles. While .2 sec faster doesn't sound like anything, I would not give it up. If I have a passenger 150 to 200 lbs in car, I can feel the slight decrease in the max acceleration and it is slightly less thrilling than without that extra weight. I think the extra adrenaline and longer warranty already paid beat better radio. I'm still standard charging to 185 kwh and the past year info seems to say that with proper care our packs should keep plenty of range for all but long trips way past 100K. I've become less worried about adding more miles cause I don't expect to sell it for a long, long time.