The problem with fast cars is you have to be quick, getting back into using the camera now after 20 years, but can remember using a filter and being able to rotate the filter to adjust the amount glare tacen out, stand there for minutes trying to make an adjustment.
What chance of doing this in software once shots are on the 'puter, and what chance to use something like a star filter to enhance the glare !!
I know its Friday afternoon and I am drifting............
racing sunday, will have a play if no breakages..........Mick