Least reliable (Worst score first)
Cadillac STS (V8)
2006 Mercees-Benz S-class
Mercedes-Benz CLS*
Mercedes-Benz E-class sedan
BMW 7-series
Jaguar S-type
I don't know about BMW but Benz has gone to shit.
http://money.cnn.com/popups/2006/aut...ble/index.html