No, because there are other factors than whether they are a ‘lemon’ or a ‘peach’. For example, age, mileage, brand value, warranty offered, convenience of purch

No, because there are other factors than whether they are a ‘lemon’ or a ‘peach’. For example, age, mileage, brand value, warranty offered, convenience of purchase, etc. These don’t tell you whether the car is a lemon or a peach, although some can help you to guess it. If you held all these other factors constant, then yes, all used cars would have the same price.