arryace
I'd double check that you're allowed to use any photos posted - if they're taken by professional trackday photographers you may find that the fee paid by the rider doesn't include the rights required for commercial use. Since the photographer retains the copyright you'd have to pay them a fee.
I have some I personally took recently at Almeria, I'll post some when I have a moment in case any suit your requirements.
Cheers!
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cjm