Totally different in a sense yes I agree, but still the idea is pretty similar. Look-up how much this Co worth for some profitability indications
Regardless, looks like there is room for similar-a-la-Chinese business(es) for North-America. Target customers would be you and I (individuals). You get rich (billionaire) in less that 10 years.
Works here, those who run those websites have total monopoly on the second-hand car market. So long to the small car trader shops (and crooks)... those are all gone and died 5~7 years ago.