The 3 series is prolly the smartest. But kids in Germany get laughed at for driving the 3. It's basically their Ford Taurus.
Nah, the Jetta is the Taurus.
The Golf (rabbit) is the Civic, and the Audi a4/5/6 is the mustang.
The Civic is actually an upper-class car there. The kids who can afford them want to convert everything to US-Spec, and spend a lot of money buying up USDM parts.
The 1-series is the mazda 3, the 3-series is the Honda Accord (family car for the middle class dad), the 5-series is the Audi a3 (of the US), and the 7 is a chauffeur car.
The VW Lupo, Fiat cinquecento, senciento, mazda 1, and some of the token tiny jap/kor cars are the Geo Metro.
Oddly enough, a Corvette is still the Corvette. Mustangs are odd imports that middle-aged men drive, and the Taurus (equivalent is a Mondeo) is a cop car.