Is the Nissan s15 legal in America?

The Nissan S15, a popular model in the Silvia series, is not legal for road use in the United States due to the country's regulations on vehicle emissions and safety standards. It was never officially sold in the U.S. market, and as a result, it does not meet the requirements for compliance. However, individuals can import S15 models under the 25-year rule, which allows vehicles that are at least 25 years old to be brought into the U.S. without needing to meet modern regulations.