Explorer Shackleton's great grandson drives car across Antarctic

British tech entrepreneur Patrick Bergel has become the first man to drive a car across the Antarctic, completing the feat 100 years after his great grandfather, explorer Ernest Shackleton, failed to cross the icy continent on foot.Bergel encountered minus 28-degrees Celsius (minus 18F) temperatures during his 30-day trip across the 5,800km (3,600 miles) stretch in a five-door car fitted with extra large wheels and snow track grips.The 46-year-old's modified 2.2 liter diesel car was engraved wit