The automobile and parts sector is motoring ahead following an update from engineer GKNGKN said its car operations have been impacted by the recent earthquake in Japan, though market conditions have otherwise been as expected in the first quarter. Sales were up by 14% from the same period a year ago to £1.49bn, while pre-tax profits rose by more than 50% to £107m. With copper prices hitting one-month highs in London, mining stocks are in demand. These include big-hitters such as BHP Billiton and Antofagasta.Top performing sectors so far todayAutomobiles & Parts 4,802.39 +1.48%Electricity 8,109.08 +0.77%Mining 27,996.12 +0.63%Pharmaceuticals & Biotechnology 8,921.12 +0.58%Gas, Water & Multiutilities 4,575.22 +0.53%Bottom performing sectors so far todayPersonal Goods 19,486.17 -1.64%Household Goods & Home Construction 6,272.30 -1.33%Electronic & Electrical Equipment 2,995.50 -0.99%Industrial Engineering 7,012.28 -0.99%Technology Hardware & Equipment 760.39 -0.73%