If a car dealer sold me a used car as a new car, what is my recourse?

Question Details:

I recently purchased a brand new vehicle that had just over 100 miles on the odometer. Then 2 days after the purchase, I found a hotel receipt in the sunvisor clearly showing the dealership owner used the car to visit a local hotel for an extended weekend. So my brand new car was used by the owner for personal travel prior to my purchase. What is my recourse or liability of the dealer for selling a "used" car as new?

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