A lot of people have been successful in fighting armed and dangerous attackers - but these confrontations could end tragically. Even if you do decide to fight - your primary goal is escape. Do not try and beat your attacker until they are sorry, destroyed or until the police arrive. The key is survival. Call the police.
Many acquaintance rapes go unreported.
Victims often feel that their peers will blame them, not believe them, or their social status will be effected. All of the reasons for not reporting have merit and validity but all victims must also be aware that a criminal who gets away with a crime once will very likely repeat the same crime. A stand must be taken by someone in order for this sexual predator to be stopped. Install a vehicle alarm or mechanical lock for the steering wheel or ignition. Always lock the doors and leave the windows rolled up.