 If you want a 4-door sedan that drives, handles and accelerates fantastically you need to buy an Audi A8L.  I have had numerous Mercedes, BMW and Porsche vehicles and this car tops them all.  It is a stealth vehicle that doesn't stand out with chrome, radical styling, 'look at me, I'm expensive' statements.  It just quietly goes about its job of getting you where you want to go in comfort with all the power you can handle at your right foot.  Great seat comfort, quiet interior, all  you could want for a long drive in heavy Southern California traffic.  I am totally satisfied!I now have 17,300 miles on the car.  No problems and amazingly not one rattle in the car.  I am still totally satisfied.In February, 2018 it now has 21,200 miles on the odometer.  I'm returning to the Audi store in Riverside, CA on Monday for the 20,000 mile service as the car is two years old.  To date there have been absolutely no problems with the vehicle.  Even the Dunlop ultra high performance tires still have more than 10,000 miles of life.  I am totally satisfied with nothing but praise for the Audi.