On the regular A5, there's a red graphic on the tailgate. Seem familiar? That's Audi Sport's signature rhomb in the "Progressive Red" brand color. It used to be exclusive to S, RS, and R models ...

For luxury-car shoppers who like choices, the Audi ... RS 5 gets a 444-hp, twin-turbo 2.9-liter V-6 and other performance upgrades, though it’s offered only as a coupe or hatchback. The A5 ...

The A5 features dual rectangular exhaust tips, while S5 models have quad tailpipes that are all functional, Audi tells us. The S5 and S-Line badges now both sport the red rhombus logo.

Out back, the A6 builds on the A5 with new taillights featuring black garnishing. The A6 badge on the liftgate is also black, whereas the quattro and S-line badges are silver with a little red for ...