[Matthew Barnes]

If you draw a line in the sand and say 'here' and no further, you're missing the point, and missing out on a whole bunch of the passion.

Ruf. Techart. Singer. Sharkwerks. Abarth. Autofarm. Emory. Walker. Who is to say that one is acceptable and another is not?

That the 911 is so unbelievably flexible - able to accommodate different tastes and purposes - is to be celebrated. For me, as an ad guy, this is the secret to the astonishing power of the Porsche brand: from the guy who thinks a widebody targa in yellow with 18inch speed lines is the business, to the guy who demands everything is exactly the same way it left the factory.

The 911 is not owned by Porsche, it is owned and treasured by all the diverse nutters out there - like us - who find a way to express themselves with Porsche bits, each with their own recipe.

The Singer cars do very little for me. But I admire and appreciate their approach and what they do for the marque. Their work makes my air-cooled world a little richer. Their approach, if not the result, inspires me to look at my own restoration in a new way.

I think Magnus, in his own anti-establishment way, has brought the gospel of the 911 to a whole new bunch of (young) people that would otherwise have avoided us air-cooled anoraks. After all, being anti-establishment and contrarian is at the heart of the 911.