Brake pads and discs

Had a screeching noise from the back wheel.
I knew that the brake pads were wearing out after 30000 miles, so I was waiting for the warning light to show on the screen.
Phoned up the dealers and they could only book me in after 3 weeks!
Went to a local garage and they showed me that the brakes pads and the discs were both worn out...
If only you came earlier and sorted the pads out, I would have saved a lot. The bill came up to £530 for the 4 brake pads and back discs!
Phoned up the Range Rover service department to order the parts, just to find out that there are no sensors to warn you of worn out pads or discs.
I haven't read the book yet, but to think that my 15 year old BMW had sensors to warn you earlier of any brake wear! What's a £45,000 car good for?
As good as the reviews will be, it will never be the same as Germsn precision, innovation and engineering!
Time to put it on Ebay!