Complex sentence: While the game features police cars, "Most Wanted" does not allow players to play as a pursuing police in chases except in Challenge mode, but are solely for checkpoint races and police pursuits, where the police are still pursuing the player.
Split into simpler sentences: While the game features police cars, "Most Wanted" does not allow players to play as a pursuing police in chases. However, players may drive several police cars in Challenge mode, but are solely used in checkpoint races and police pursuits, where the police are still pursuing the player.