There’s no one definitive answer to this question, as the cleaning process of a car in Hell will vary depending on the make and model of the vehicle, as well as the specific conditions and environment within which it was parked. However, some tips on how to clean a car in Hell may include using a plunger to suction onto any dirt or grime that has built up on the inside of the car, using a vacuum cleaner with high-powered filters to clean any debris that has collected on the exterior of the car, and using a bucket or other container filled with water and vinegar to clean any areas that have been difficult to reach or are covered in dried blood.