Routine maintenance is a bit spendy.
I thought my dad's old 86 Audi Coupe was fun, but this S4 is the greatest sports car I've ever driven.
In tight fast turns you can feel exactly where the wheels are and how well they're gripping. That may sound normal, but this car feels completely different than anything else (I don't know how else to explain it).
Very comfortable seats, front and back. Nice instrument panel and sound system.
Your review is somewhat helpful on the Audi S4. However, more elaboration would give your readers a better picture of the car. Not to mention, disadvantages of the car would help. Other than that, your review is better than nothing.