Independent: Forget milk float. Forget golf buggy. The tarnished image of the electric car is about to be smartened up. The first proper-performance, four-seater electric car from a major manufacturer is about to be launched on the UK market. The i-MiEV — pronounced eye-meev — from Mitsubishi, is a saloon car which will carry four adults and reach a top speed of 87mph. It will be available in the UK, initially for leasing, from the middle of 2009 and can travel up to 100 miles without …