I'm not sure the AMV8 and the 911 are really comparable cars. The 911 is a very well known design and not 'different' in any true sense of the word. However I suspect that it would have the edge on the Aston in terms of performance/handling.

However the Aston will probably be a more pleasurable and involving car to own. Probably a similar distinction between the Gallardo and Ferrari 360 - if you would allow that comparison and ignoring performance for the moment. Most would prefer the Lamborghini for design 'flair' and individuality and some would prefer the 360 because it feels a safer bet to own (proven maybe).

I am an Aston fan (and Vanquish owner) - they're unique and, I think, very stylish - they also sound superb and have 'ample' performance. However it's a completely different car to the Murcielago (same size engine and roughly the same price) - but it's just not possible to compare the two realistically.

I would have the AMV8 over a 911 any day!!