I have to buy a new car within the next couple of months, and I'm trying to think of the best way I can exploit that for miles. Would the best way be, take out an AA credit card (get 20,000 miles with first purchase), get 10,000 bonus miles with first purchase of $10,000 or more (the car), have the money for the car set aside, and get 16,000 miles with the purchase of the car? That would be 46,000 miles right there, enough for an off-peak flight to Europe.

Does this all make sense or am I missing something? Would there be a better way?