Stan,

You should look at it again. The reliability for 2008 E70 6-cyl (they don't have 8-cyl details) is
Engine Major..........Excellent
Engine Cooling........Excellent
Transmission Major..Excellent
Transmission Minor..Excellent
Drive System.........Excellent
Fuel System..........Very Good
Engine Minor..........Excellent
Electrical System....Excellent

Since 2005, it actually looks pretty good with the exception being the Electrical System.

So I definitely wouldn't put it into Range Rover territory I agree that it's near the bottom of the SUVs on Predicted Reliability chart. I have to feel that chart (which appears odd in that has the V-8 listed) is biased more towards the BMW SAV early years...

My 15-old month old E70 4.8 definitely falls into the Excellent category on all measurements.