Arrogance and condescension are attractive traits in a game designer. Customers like nothing more than to be talked down to.
Sarcasm is better, then? (actually, my comment was merely sarcasm too). What I meant was, if "Grand Prix" is too confusing a term for customers, well, we're in big trouble. You have to give your customers credit for at least a little basic education.
Not using the term "Grand Prix" because it might be too confusing, would be an example of condescension and talking down.