Final answer:
In most states, including New Jersey, you must be at least 18 years old to register a vehicle, which is also the age requirement for voter eligibility.
Step-by-step explanation:
In New Jersey, the requirement to register a vehicle does not directly relate to political engagement, such as voter registration. However, your ability to register to vote is often connected with licensing services. While the National Voter Registration Act of 1993 enhanced the ability to register to vote through driver licensing facilities, it does not set age requirements for vehicle registration. In most states, you must be at least 18 years old to register a vehicle in your name, which coincides with the age requirement for voter eligibility.