Doesn't sound too profitable, or worth the hassle if these cars have been damaged in accidents.
However, I notice in my parent's neighborhood there are a lot of immigrants who buy these "flipped" cars. They need transportation to get to work, but they cannot afford a car from the dealership yet, or they do not qualify at the dealership if they are undocumented. Therefore, they seek alternative venues. This could be where you step in.
If you live near immigrants, people with bad credit, low income neighborhoods, or anyone else who is unable to get a car through a dealer, you may be their saving grace.