The FIA World Rallycross Championship has signed a deal with Silverstone circuit to host a new motorsport event in 2018 which will include World RX race action and other festival elements.The event will form the British leg of World RX replacing Lydden Hill as the Kent-based circuit nears the end of its contract. The move comes at a pivotal time in rallycross history with the sport due to celebrate its 50th anniversary this year and continue its rapid growth.Paul Bellamy, World RX Managing Director at IMG, commented: “We have been in talks internally at IMG for some time about creating a large scale motorsport festival weekend and we are delighted that Silverstone is able to share our vision for the future.”More details about the event weekend will be released in the upcoming months.