Does anyone know how many F's were produced?

No but only approx. 3000 a year are being built so they can become collectable if you choose to do so

I think we should start an owner's list and see how many we can keep track of :)

I've read anywhere from 2000 to 5000 per year, I think the 5K is for entire world though, Either way it will be more rare than M3 and C63.