http://www.autocar.co.uk/CarReviews/FirstDrives/Porsche-911-3.8-Carrera-GTS/254247/

German : http://www.autobild.de/artikel/porsche-911-carrera-gts-fahrbericht-1294763.html

Also AMS had a go ( pretty positive), and Sport Auto.

AMS and Motorauthority mentioned (eventuall) untersteer As a result of very high grip @ The rear axle.

Hope The unterster isnt too Bad
 
please post any other reviews i might have missen.
cheers
nick