UTMB: The most recent MCAT is used to screen applicants, with scores below 8 and O being less competitive. The MCAT should have been taken during the past year
For the entering class 2000-2001, the mean GPA was 3.65, MCAT 27, 98% Texas residents.
Asking what was the lowest GPA or lowest MCAT is next to useless. If someone with a low GPA or low MCAT score, an outlier on the range of scores, was accepted, you can bet the farm there was some particular, exceptional reason for that. A typical applicant is unlikely to be accepted with a score below one standard deviation from the mean. A score of 3 9s, (27) with some slight deviations, is the norm for UTMB.
There are always students who say "I was accepted with a low MCAT/low GPA" but without knowing more details about those students and why and where they may have been accepted with those numbers, it is foolish to pin your hopes on that. Acceptance to medical school is not a lottery. It is quite predictable to a knowledgeable observer.