I have not looked enough into it yet but I guess over 30-35000 miles and three years you would get away spending nothing on maintenance other than 3 services and a couple of sets of tyres. My brake pads are showing pad material at least as thick at the backing plate with 26000 miles up which probably supports this.
I cannot see someone paying £4k allround for discs/pads on a 4 year Ghibli when it is worth sub £20k. They clearly need to address parts pricing here.
I wonder how much service 2 & 3 cost?