Hate to say it but, I too can confirm that it only uses gifs. And from memory it was written on the messenger says blog that the file had to be lvback.gif
Only thing is I can't seem to find it at the moment but I'm about 100% sure it was posted a few times. I'd have to sit down tomorrow if and when I get a chance to find the blog posts again.
Red Bull Racing Australia - Triple Eight Race Engineering - Holden
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