Motor Vehicle and Highway Safety Enhancement Act of 2014

[AI summary unavailable — showing source text] Motor Vehicle and Highway Safety Enhancement Act of 2014 - Authorizes appropriations out of the Highway Trust Fund (HTF) (other than the Mass Transit Account) for specified National Highway Traffic Safety Administration (NHTSA) safety programs (including administrative expenses) for FY2015-FY2020. Revises uniform guidelines for state highway safety programs to require programs to: (1) reduce injuries and deaths to older drivers, and (2) improve emergency medical services response to crash sites. Revises grant eligibility requirements for states that adopt and enforce mandatory alcohol-ignition interlock laws to allow them to make certain exceptions to the requirement. Declares that the federal share of costs for highway safety research and development projects may be up to 100% if so specified in the project agreement. Revises the allocation of grant amounts to a state for a fiscal year for motorcyclist safety programs. Extends for FY2015-FY2020 the authorization of appropriations for NHTSA motor vehicle safety programs in general. Revises and increases civil and criminal penalties for persons who violate motor vehicle safety regulations. Raechel and Jacqueline Houck Safe Rental Ca…