The 2012 Abu Dhabi Desert Challenge (March 30 – April 6) is set to feature an even more varied line-up than ever before, with some 35 different nationalities and a record number of female competitors already signed up to tackle the towering dunes and spectacular terrain of the formidable Liwa Desert. With the registration deadline for the 22nd edition of one of the world's toughest and most popular cross-country rallies just hours away, the Automobile and Touring Club of the UAE (ATCUAE), organizer of the race, has confirmed it has already received entries from across six continents. Mohammed Ben Sulayem, ATCUAE President and founder of the Abu Dhabi Desert Challenge, said: “The Abu Dhabi Desert Challenge is a ‘Must' for all serious rally drivers and riders. It is renowned for participants and their machines, to their absolute limits, giving them a chance to really prove themselves in front of their peers. That is why, in its 22nd year, it continues to attract such a strong line-up of entrants from around the world.” In a significant development for the race, 2012 sees a marked increase in entrants from South America, with competitors from Bolivia, Brazil, Chile, Venezuela and Uruguay already confirmed. By attracting growing numbers of entrants from a continent where rallying is extremely popular, the Abu Dhabi Desert Challenge will further spread the names of one the world's most beautiful and spectacular locations, the Western Region of Al-Gharbia. Among the contestants battling it out across the dunes and stunning scenery of the Rub Al-Khali (Empty Quarter), there will once again be a strong contingent from right across the Middle East. Notably, the UAE's entrants include two of the region's most famous rally drivers, Sheikh Abdulla Al-Qassimi and Khalifa Al-Mutaiwei. An indication of the increasing popularity of cross-country rallying among female racers, the global appeal of the rally sees the number of participants rise to six this year. Desert Challenge regular and UAE resident, Sheila Hutton-Barker will again compete in a Nissan Patrol as co-driver to her husband Ian. The Brit will be joined by contestants from Brazil, Bulgaria, the US and Italy, including the most experienced female quad biker in the field, Camelia Liparoti. This year riding a Yamaha Raptor 700 quad bike, Liparoti has taken on and completed the Abu Dhabi Desert Challenge three times before, providing the ideal springboard to help her claim the crown of women's champion of the FIM Cross Country Rallies Championship for the past three years. The Desert Challenge is held under the patronage of Sheikh Hamdan Bin Zayed Al Nahyan and with support from a number of key partners including as the Abu Dhabi Tourism & Culture Authority, Nissan and ADNOC.