Never ceases to amaze me how people see me in my $4,000 Porsche and I get the "I guess you think you are all that and a bag of chips" attitude...
But if I driving my $12,000 Hyundai I'm driving a responsable economy car.
Seriously you should have flat out told the kid how much you paid for the car (not that it's any of her damn business) compared to cost of the average new Honda, Toyota, Ford, Chevy, etc. she sees in the teachers parking lot (or her friends are tooling around in).
Also should note that high school is usually the age when many of us get the "high and mighty knowitall" attitude... fortunately some of us grow out of it.
PS: There is a pickling okra joke in here somewhere but I will be nice… for now.