Auf Wiedersehen Petrovic

"Play as both sides, and win as each one, in all ranked multiplayer variations, races, and also Cops 'n' Crooks."

- In-game description

Auf Wiedersehen Petrovic is an achievement/trophy in Grand Theft Auto IV.

Acquisition
Win as both teams in every ranked multiplayer game mode.

Trivia

 * The name of the achievement/trophy is a reference to the 1980s British television series, Auf Wiedersehen Pet. Coincidentally, Timothy Spall, who provided the voice of Barry Mickelthwaite in Grand Theft Auto: Vice City Stories, appeared in the series.