✔ 最佳答案
Buy from 大行或汽車代理 is actually no difference from 2nd hand car shops or private sale. As those 2nd cars are actually private sale from their sales, no relation to the 代理 company itself.
Like when you buy a new car from them and ask for trade-in, they will offer an price to the buyer and get the car, that is the source for those 2nd cars. The sales accepts the car for themselives, not the 代理.
In my opinon, it is better to buy from private sale. It could be even better as the car will NOT much decorate by the car shop and you no need to pay higher price. However, same thing, you may need to bring the car to garge to check for the sake of safety.