What it is: A redesigned S4 performance sedan arrived as an early 2018 model with a 354-horsepower, 3.0-liter V-6 engine that's turbocharged instead of supercharged like the engine in its predecessor. An eight-speed automatic transmission and all-wheel drive are standard.
- 18-inch wheels with standard summer tires
- Full-LED headlights
- Four selectable driving modes
- Adaptive suspension available
- Variable-ratio steering available
Here's Info on the Regular A4:
What it is: German luxury brand Audi introduced a redesigned A4 sedan last year. The styling changes were more subtle than dramatic, and the new model retained the same basic shape as its predecessor. Front- and all-wheel drive versions are available along with a manual transmission in place of the dual-clutch gearbox. Competitors include the BMW 3 Series, Cadillac ATS, Lexus IS and Mercedes-Benz C-Class. A performance-oriented S4 variant returns for the 2018 model year.