Hmm, I'm only 9 months into my E70 but only had a light bulb issues and an oil change under warranty.

I can say that in the 4.5 years I owned my 2004 E53 that there was about $15,000 in repairs and nearly all of that covered by my 3rd party warranty save for the $100 deductible (bought the car when it was 3 years old). That car's last 2 years were particularly painful with how much time it was in the shop. Had I not had that warranty I'd have driven it off a cliff.

We've had such good experience with our 3 Series BMW's and ready to replace the 2006 now and will go with another 3 series without question. I hope my confidence is as high 6 years down the road with the E70.

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2007 328i Sport, Monaco Blue
2011 X35D - sold -Space Grey
2004 X5 4.4i - sold - Kalahari Beige
2001 X5 3.0i - sold - Pearl Beige
2006 325i Sport, Sonora Beige
2000 323i - sold - Sienna Red