Q: How does a V6 out-run a V8 with more displacement?
A: On a high altitude hill climb where the V6 has twin-turbos compressing the intake air, while the V8's run at effectively 60% of their displacement.
Still, it is sort of neat to see a V6 from Ford spank a Maserati at something. Link: http://www.6versus8.com/showdown/intro/index.html