>>28481461 (OP)The tire in the 1st photo is different than the bottom one, and it looks like it has more tread in it, which means it's been on the car for less time.
Both the caliper and the rotor are free of rust compared to the lower one as well. Lastly, the inside of the lower wheel is coated with brake dust, while the inside of the upper wheel is not.
Put this all together and it's clear that everything there has been replaced. The brake caliper, brake rotor, wheel, and tire. The car has been in an accident, 100%. Ask them. If they can't or won't tell you what happened and what has been replaced, walk. Although personally I'd see this and walk without even bothering to ask.