We've seen many of these tests, but I am not sure if they were so large and extensive. Nevertheless, a great comparison test by Car and Driver that will leave you speechless, and I don't mean about the top results, but the bottom ones. It will be surprising to some, but probably not for others. Head over to Car and Driver to read the full review. Here is a brief description of each cars good and bad parts.
2007 Lexus LS460L
Highs: Tranquil environment, flawless finish, comprehensive standard luxury equipment. Lows: Soft in roll, squishy tires, small trunk, long stopping distances. The Verdict: May be the most indulgent luxury car in the segment.
2006 Jaguar Super V-8
Highs: Keen steering, pliant ride, low weight, simple controls.
Lows: Engine not always that strong, narrow body compromises space for passengers. The Verdict: The perfect long car for those still fighting World War II.
2006 BMW 750Li Highs: A fast driver's car that has all the moves. Lows: Challenging ergonomics (the curse of iDrive), interior is not that elegant. The Verdict: Fun to drive if not to look at.
2006 Audi A8L Quattro Highs: Cool styling, sporty character, cheaper than German colleagues. Lows: Smallish engine relative to the competition, slowest off the line. The Verdict: A very adaptable vehicle.
2007 Mercedes-Benz S550 Highs: Torquey V-8, great ride, amazing handling. Lows: Seriously expensive, polarizing styling. The Verdict: Maximum comfort, with plenty of excitement for the guy behind the wheel.
If you didn't guess it already, the winner was the Mercedes S-class 550.