The cars belong to the oil-rich Al-Thani royal family, who own a string of luxury vehicles – including a one-off Pagani Zonda Uno.  Qatar Holding group, which forked out £1.5 billion in April to buy Harrods from Fulham FC owner Mohamed Al Fayed, is led by the Prime Minister of Qatar Sheikh Hamad Bin Jassim Bin Jabr Al-Thani.  The 249mph Koenigsegg is one of only six ever made. The custom-built supercar is built from scratch and does a 0-60 in 2.9 seconds, producing a staggering 1,064bhp.  The Lamborghini is one of only 350 ever built, again in the families trademark colour, and has a top speed of 213mph and is capable of 0-60 in just 3.2 seconds.  But both were brought to a standstill when they were clamped – although the owners shouldn't have too much trouble stumping up the £150 release fee.  The owners could have taken advantage of Harrods' valet parking service which charges a £8 for the first hour or £40 for 8-9 hours with an additional £50 charge to store a car overnight.  An onlooker said: ''It's not every day you see cars like this, let alone watch them get clamped.  ''Judging by their cars, I shouldn't think the owners will worry too much about paying a couple of hundred quid to have the clamps taken off.''  The Al Thani family have an estimated wealth in the region of £2.4 billion as well as stakes in dozens of businesses around the world.  A spokesperson for Harrods said: ''You will need to speak to the Royal Borough of Kensington and Chelsea who deal with parking regulations.''
Two of the world's fastest cars - belonging to the new Qatari owners of    Harrods - were clamped right outside the Knightsbridge store.