Peter, a second-hand car dealer, purchased a car in the wholesale market for $15,000. Peter contracted to sell the car to David for $20,000, but David refused to take delivery of the car. Peter sued David for breach of contract. Requirement:

(1) What damages can Peter claim?

(2) If Peter later sells the car to another purchaser for $18,000, what damages, if any, would Peter be entitled to?

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