MILLVILLE — New Jersey Motorsports Park is hosting a Family Fun Festival from 9 a.m. to 5 p.m. Saturday, March 15. The event, formerly branded as the facility’s “Open House” has been re-branded for 2014. This season, carloads will be admitted for $10, with special rates for motorcycle ($5) and buses/RV’s ($20). Families will have the opportunity to take advantage of free parking, free karting experiences, free track laps on Thunderbolt Raceway, live music, vendors, and static displays of cars, emergency vehicles, and NJMP partners. Tickets are first-come, first-serve, and capped at 5,000. Visit www.njmp.com/fun or the NJMP registration building to purchase.