Final answer:
Shelly's right to disaffirm the car contract will depend on whether she acts within a reasonable period of time after reaching the age of majority.
Step-by-step explanation:
Shelly's right to disaffirm the car contract will depend on whether she acts within a reasonable period of time after reaching the age of majority. When a person turns 18, they have the legal capacity to enter into contracts and can choose to disaffirm the contract made as a minor.
The condition of the car or the rights of the other party do not determine Shelly's right to disaffirm the contract. As long as Shelly acts within a reasonable time after turning 18 to disaffirm the car contract, she should be able to do so.