Who needs an 84m-long aircraft?

It was built to carry Soviet space shuttles and, 27 years after it entered service, it's still the world's biggest plane. The An-225, better known as the Mriya (Ukrainian for "dream") creates a fuss wherever it goes. Measuring 84m long with an 88m wingspan, it weighs 175 tonnes without cargo or fuel. It's the longest-bodied, longest-winged and heaviest operational plane in the world. Its cargo compartment is 43m by 6.4m by 4.4m - big enough to hold 50 cars. And there is only one of them.
 It has just landed in Perth, transporting a 117-tonne generator from the Czech Republic.