Fair Practices in Automotive Products Act - Title I: Domestic Content Requirements for Motor Vehicles - Sets forth for all motor vehicle manufacturers which produce over 100,000 motor vehicles for ultimate retail sale in the United States "minimum domestic content ratios" (the domestic value, including labor and parts, of the manufacturer's production costs of all automotive products sold in the United States).

Requires all vehicle manufacturers producing more than 50,000 motor vehicles for sale in the United States to provide information to the Secretary of Transportation for the purpose of administering this requirement.

Authorizes the imposition of import restrictions on manufacturers violating such standards.

Title II: Unfair Actions Affecting Domestic Parts Manufacturers - Makes it unlawful for any vehicle manufacturer to refuse to determine whether parts produced in the United States by a parts manufacturer satisfy reasonable replacement part standards established by the vehicle manufacturer. Makes violators civilly liable to the United States.