Thanks. I didnt really use any filter effects apart from motion blur. The rain on the windsheilds are made by creating a black square, adding noise to the square, then enlarging it and cutting round the windsheild, then change the layer filter (cant remeber what i changed it to).
Reflections are made by copying the background, rotating, and messing around with the layer filter. I also cut round the tarmac, added a black layer to it and changed the filter to make it look like wet tarmac. Changed the levels, making it darker and make the whites more grey