Car Valeting/Washing in Supermarket Car Parks

This idea is bad for the british,good for china. In british they are always buy older cars ,of course they dont want to pay some money in the older cars, like my family before, they got a older about 500-600 pounds,I lived there for 4months and I never see they washed the car.also I havent see have ang wash car's shop.In china is different with the british ,doesnt have many people want to buy the older car and you can see the a lot of car shop and always busy,every have many people will go to wash their dear car,so now the wash car is more expensive than before.but people still will go , because they are really like their car.I think this idea is very goood for use in china.
If you want to investment in the british, just choose the one of three, bar , coffee shop ,fastfood