This S3 is from Greece guys.Some say it has a twin turbo R32 engine from Golf MKIV......nobody knows except the owner that is the developer too.More details here: http://highperformance.gr/index.php/auto-test/122-worlds-fastest-road-legal-audi?showall=&limitstart=Somewhere in youtube there is a video between this car and a tuned Porsche 9FF.