Costello hired Sagan to drive his racing car in a race. Sagan's friend Gideon promised to pay Sagan $3,000 if she won the race. Sagan won the race,...

Costello hired Sagan to drive his racing car in a race. Sagan’s friend Gideon promised to pay Sagan $3,000 if she won the race. Sagan won the race, but Gideon refused to pay the $3,000 to Sagan. Gideon contended that no legally binding contract had been formed because he had received no consideration from Sagan in exchange for his promise to pay the $3,000.