That happened to one of the members back about 6 months after this site started. She was paid to answer questions regarding her Sport Trac from a group of 4 or 5 market research people. She was paid $125 and also given a bag of freebies like you might get at an auto-show or trade show. Things like key-rings, paper weights, pens, coffe mugs, etc.
Fill us in on the details when your done and let us know what they asked, and what you got.
...Rich