Mech. head 8v polo engines will happily rev to 9-9.5k if you let them. I've heard stories of G40 cup car motors surviving the wrong side of 12krpm on nasty downshifts back in the day too. Hilariously over engineered when you think that Audi designed the bottom end back in the early 70s with 40bhp in mind.
still on my webspace if anyone wants to save it http://oddball.usererror.org.uk/polo1web.wmv Edited by: 0ddball