overall the S4 is a very nice car. Plenty of power and good overall handling. MPG is good as well averaging 25 combined in 7500 miles. Tires that come on the car are summer tires, not sure why they deliver a car in NJ in December with summer tires, do not try to get through the winter with them, you will need to put all season tires on. Navigation is not up to par with other vehicles i have owned and slow to load data and respond, also no touch screen. Biggest issue i have is with the electric steering, the on center feel is terrible, worst part about it is Audi acknowledges there is a problem but has no solution. Dealer says Audi is working on it. Car is 6 months old and still no solution
If you want a cushy car, this isn't it. This car is designed for performance and the experience of driving. You will find quieter and cushier cars in this category, but the S4 gives you a "feel of the road" that you won't find in other cars at this level.
The S4 is a great combination of a sedan and a sporty fun to drive sports car. It responds well to normal day to day driving and handles anything the road throws at you. When given the chance to drive it in sport mode this car wants to take off and runs the curves like its on rails. I have run this car in autocross events over a dozdn times and ut is a blast to run the corse and try nkt to hit any cones. A lot of fun to drive and yet very reasonable for a daily drive car. The gas milage seems to be getting better as I own it longer. The last 600 mile trip I got 31.7 highway driving 79 mph. Audi has a winner with the S4!