Final answer:
A motorcycle belongs to the Transportation category of the Consumer Price Index, which encompasses vehicle-related expenses.
Step-by-step explanation:
A motorcycle would fall under the Transportation category of the Consumer Price Index (CPI). The Transportation category of the CPI includes expenses related to vehicles, such as new vehicles, airline fares, gasoline, and motor vehicle insurance.
Therefore, when considering the eight major groups of goods and services in the CPI, a motorcycle is included as part of the Transportation group.