“Largely based on the VOLVO-sourced platform that underpins the Ford Taurus, the 2009 Lincoln MKS’ fully independent rear suspension is all-new in design.”
http://www.motortrend.com/features/auto_news/2007/112_0711_2009_lincoln_mks/index.html
Who said anything about the Taurus/Sable/MKZ rear suspension?
No, the gearbox is new and unproven and the rest of the car is, well, blah. My old Jaguar XJ6 is more interesting, cheaper, and gets about the same gas mileage as the AWD version.