Agree to all of the above. I always have a lot of 6 to 12 mile trips. That is my pattern and has been for years - even before buying BMWs.

What their test ignores is a battery that develops a physical fault not due to usage which was my case.

It would also help if there was a low battery warning if their battery's fail that easy.

My sister drives so little that I bought her a battery charger since her battery is dead half of the time. Three years latter - same battery.

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Current - 2010 X5 35d
Retired - 2008 X5 3.0
Retired - 2007 X5 3.0
Retired - 2006 325 3.0