just had a little accident with my husbands brand new sportline audi ,you know the one with ridiculousley low tyres and a really hard ride (sorry FIRM ride) , a lady swung her car out of an exit and to stop us collided i swung into the kerb ,except there was half a brick wedged up against the kerb and ive managed to scratch the alloy wheel ,is it possible to polish out a scratch from an alloy? or will i need to buy a new one