S3 weights a shitton even if it looks small. Its kurb weight is 1420kg OEM and this has DSG which is at least 98Kg, most likely 4wd in range of 110kg and top of that all mods so I bet the weight is near 1550kg. So for that weight it is pretty fast How I know? Because I have done this myself. I was first to make S3 DSG 1999 pretty much in all europe.