Insurance Institute for Highway Safety (famous for showing in Dateline back in 12/2000 that the E53 X5 was the safest car ever tested in their history) just released data for the vehicles with the lowest rate of driver death and also cars/suv with the highest rate of driver death.
They looked at 2001-2004 model year car driven during the calendar year 2002-2005.
The E53 X5 and BMW 7-series were listed as fewer than 20 driver deaths per million registered vehicle years.
Check it out here with this PDF file:
http://www.iihs.org/sr/pdfs/sr4204.pdf