Read more: http://www.autoexpress.co.uk/porsche/911/60953/porsche-911-carrera-4s<br /><br />We travelled to Austria to put two new four-wheel-drive Porches to the test: the 911 Carrera 4S and the 4.2-litre V8-engined Cayenne S Diesel.<br /><br />Subscribe to Auto Express magazine and get 6 issues for £1 plus a free gift: http://subscribe.autoexpress.co.uk/yt
