Porsche 911R v Aston Martin V12 Vantage S Chris Harris drive the Porsche 911R and Aston Martin V12 Vantage S on road and track. Watch the full video at https://www.topgear.com/videos/chris-harris-drives/aston-martin-v12-vantage-s-vs-porsche-911r 12.09.2016 Chris Harris on Cars@youtube play video