V10 is a strong engine its lambo after all and was made to produce over 500bhp and its running 450 de-tuned so yes they are very good engines the W12 has its draw backs no room what so ever in the engine bay cant really do much power and torque are very respectable and the W12 has a more exotic feel to it if you ask me yes its more refined but the W12's distinct engine note is more like a bugatti W16 kind of sound and the V10 Well as you would expect its a lambo V10 and sounds like a lambo V10 witch to be honest i like the idea of it because with a nice exhaust set up you really turn heads when people look down the road and can hear a gallardo and yet the engine note is coming from the back of what is an audi A8 really and i like that it will get people thinking unless your a petrol head and know your cars
15k is a good price for the S8 even if the miles a touch high if its been well maintained then you should have no problems with the S8
and just to confirm the brakes on my W12 are 380mm i measured them just to make sure
so if you do get the ceramic option dont worry too much about the 4k cost to replace the discs because the dimensions are the same and you can use W12 discs with the 6 pot callipers and that would still be a hell of a set up i think the D3 4.2 has a 363mm set up but the W12 has deffo got the 380mm