It is probably on the back of peoples' mind but I was wondering what is the battery life expectancy and cost to replace. The Clarity's battery is like 10 times the size of a regular hybrid battery and I heard it can be expensive to replace a regular hybrid's battery. Crazy idea - I wonder if the Clarity can use a regular hybrid size battery and run like a regular hybrid down the line when it comes time to replace. It could shed about 500 lbs of weight and be more efficient. Also, does the Clarity have a timing belt to replace?