Question: The Formula Ford Festival is held annually at the Brands Hatch which was first used for which motor events?
Context: The Formula Ford Festival is an annual meeting of Ford powered single seat racing cars which is held at the end of the British racing season, at the Brands Hatch motor racing circuit in the county of Kent, in Southern England.  The events are held over the course of a weekend and although various classes of past and present Formula Fords are present, the high point for many is the championship in which young but skilled drivers from Ford competitions in Europe and beyond race against one another.  Often it is a rare chance to compare the skills of drivers who take part in different Ford competitions across the world.  Many winners of the festival have gone on to enjoy professional careers in various branches of motorsport - including fourteen who have raced in Formula One. Brands Hatch is a motor racing circuit in West Kingsdown in Kent, England.  First used as a grasstrack motorcycle circuit on farmland, it hosted 12 runnings of the British Grand Prix between 1964 and 1986 and currently hosts many British and International racing events. The 2015 Australian Formula Ford Series was an Australian motor racing series open to Formula Ford and Formula Ford 1600 cars.  The series was sanctioned by the Confederation of Australian Motor Sport (CAMS) with the Formula Ford Association Inc appointed as the Category Manager.  It was the second Australian Formula Ford Series to be staged following the withdrawal of national championship status from the Australian Formula Ford Championship at the end of 2013. Geoff Boss (born April 26, 1969) is an American Champ Car driver from Narragansett, Rhode Island who drove in the 2003 season with Dale Coyne Racing.  In a total of 12 starts he finished in the points three times, with a best of 9th place at the Lexmark Indy 300 in Australia.  He ran in the Indy Lights series from 1997 to 2001, winning the 1999 Toronto Grand Prix from the Pole position.  He also had podium finishes at Long Beach (twice) and Detroit (twice).  He competed in the Barber Dodge Pro Series from 1993 to 1996, winning races at Miami, Sears Point, Phoenix, Watkins Glen, and Reno.  He was runner-up in the 1995 Championship to Jaki Scheckter.  He won the Skip Barber Formula Ford Series three times, twice in 1992 (East and Midwest) and again in 1993 (South), becoming the first driver to win three Championships.  He also competed in the Formula Ford Festival at Brands Hatch in 1992 with Team USA, and the 12 Hours of Sebring in 1994 in a Nissan for Leitzinger Racing with his brother Andy whom he competed against in Indy Lights. Jason Watt (born 24 February 1970) is a Danish racing driver.  Watt enjoyed a fruitful karting career before moving into Formula Ford in 1992.  He graduated to the British Formula Vauxhall Lotus Winter Series in 1993, winning the championship, as well as winning the following years Brands Hatch Formula Ford Festival, and British Formula Ford championship. The 2010 Australian Formula Ford Championship was a CAMS sanctioned national motor racing title for drivers of Formula Ford open wheel racing cars.  It was the 41st national series for Formula Fords to be held in Australia and the 18th to carry the Australian Formula Ford Championship name.  The championship, which was promoted as the "2010 Genuine Ford Parts Australian Formula Ford Championship", began on 26 March 2010 at the Albert Park Street Circuit and ended on 21 November at Sandown Raceway after eight rounds.  Australian Formula Ford Management Pty. Ltd. was appointed by CAMS as the Category Manager for the Championship. The 2012 Australian Formula Ford Championship was a CAMS sanctioned national motor racing title for drivers of Formula Ford racing cars.  It was the 43rd national series for Formula Fords to be held in Australia and the 20th to carry the Australian Formula Ford Championship name.  The championship was contested over an eight round series which began on 16 March at the Melbourne Grand Prix Circuit and ended on 18 November at Winton Motor Raceway.  Australian Formula Ford Management Pty. Ltd. was appointed as the Category Manager by CAMS for the series, which was officially known as the "2012 Australian Formula Ford Championship for the Ford Fiesta Cup". The 2014 Australian Formula Ford Series was an Australian motor racing series open to Formula Ford and Formula Ford 1600 cars.  It was the first national series for Formula Fords to be conducted in Australia following the withdrawal of national championship status from the Australian Formula Ford Championship by the Confederation of Australian Motor Sport (CAMS) at the end of 2013.  The series was sanctioned by the CAMS with the first five rounds each staged at a Shannons Nationals Motor Racing Championships meeting.  The Formula Ford Association Inc was appointed as the Category Manager by CAMS for this series. Cristiano Morgado (born 27 August 1979 in Johannesburg) is a South African race car driver of Portuguese descent residing in Durban, South Africa.  His racing achievements to date include winning the Rotax Max World Championship in 2004 and the European Championship the following year in the RM1 class.  He was also on pole position for the 2004 Formula Ford Festival in his first year of car racing.  In 2006 he achieved 4 wins on his way to the runner up spot in the British Formula Three National Class Championship.  These achievements led him to receive the honor of Springbok Colors.  In 2008 he entered the new Formula Volkswagen Series launched in South Africa scoring 8 wins during the championship season.  These results earned him his first A1 Grand Prix berth for A1 Team South Africa as the test driver in Taupo, New Zealand.  Following a good performance he was also selected for the final two races of the season in Portimão, Portugal and Brands Hatch, England.  In a return to karting for the 2011 season, he won the Rotax World Championship in the DD2 Masters class.  He repeated this feat in 2012 and again in 2013, becoming the first driver to ever hold four Rotax world titles. The 2014 Dunlop MSA Formula Ford Championship of Great Britain was a multi-event, open-wheel single seater motor racing championship held across England and Scotland.  The championship featured a mix of professional motor racing teams and privately funded drivers, competing in Formula Ford cars that conformed to the technical regulations for the championship.  This, the 38th British Formula Ford season, was the second year of the single class format, with all drivers using the latest cars built to the Formula Ford EcoBoost specification.  There was also an award for the highest placed Rookie.  Part of the TOCA tour, it formed part of the extensive program of support categories built up around the BTCC centrepiece.  The season commenced on 30 March at Brands Hatch – on the circuit's Indy configuration – and concluded on 12 October at the same venue, utilising the Grand Prix circuit, after 30 races held at 10 meetings, all in support of the 2014 British Touring Car Championship season.
Answer: grasstrack motorcycle circuit