This is a relatively small car: considerably smaller than competitors like the Cadillac CTS or Infiniti G35, and very close in most measures to the compact Honda Civic.

The eye immediately settles on the A4's big, tall grille, of which opinions vary. The only consensus seems to be that it's different, and it immediately identifies the A4 as an Audi.

The headlights give the front-end an assertive look, with lenses that angle upward as they wrap around the fenders. Laterally split intakes below the body-colored bumper and outboard of the grille do double duty, housing fog lamps and channeling air toward the front disc brakes. A modest hood swell, which designers call a power bulge, carries the grille's vertical outlines back to the roof pillars. On the ultra-high performance RS4, the hood and fenders are fabricated from aluminum to reduce weight.

The A4's profile shows a sharply creased shoulder line running the length of the car, from the trailing corner of the headlights to the leading edge of the tail lights. The side windows are nicely proportioned to the body mass, atop a relatively high beltline. A bump strip breaks up the expanse of the lower door panels. The painted door handles look great, but they are hard to grab and can snap away from your fingers when you're in a hurry.

The A4 Cabriolets look good with the convertible top up and much better with it down, which is probably the way it should be. The fully automatic, electro-hydraulic roof will open or close at speeds up to 19 mph. That's handy if a rain squall sneaks up while profiling through town. The soft top is thickly insulated, with a glass rear window and defroster, so it shouldn't be too big a detriment in cold climates.