Because I think some white people drive cars as status symbols and doesn't necessarily mean they have THAT much money. I genuinely believe Asians driving expensive cars have the money to afford such a lifestyle.
A friend of mine lives across from an Indian family. They enjoy a lot of banter, and he gets together with the husband and a couple of others to play guitars and pretend they're rock stars occasionally. Anyway, the wife drops off the odd random home cooked dish. Better than any Indian restaurant I've been to in Australia