What is the highest score ever on the MCAT?
Answer:
The highest score ever on the MCAT is a 45. Believe it or not this happens quite regularly, but only a few times per year. However, a 45 isn't needed, or even close, to get into Medical School (typically 30-35)
However to help your way to getting that 45...I would recommend taking a look at http://www.FreeMCATPrep.com - they have an outline that is modeled after AAMC's (the testmaker) topic lists. Also, they have a bunch of practice questions so you can gauge where you are (and it's 100% free, unlike those other expensive companies).
Good luck with your preparation!