Brake lining life is much like fuel mileage in that driving style and use of vehicle can make huge differences in the result. Long pad life is an indication of lots of highway driving and/or a very careful driver. IOW it says more about the driver than the vehicle.

When I drove lots of highway miles every year, my 123 & 124 cars regularly went 100,000 miles between front pad changes and even longer for rear pads.

It was very unusual to see that you had to service the rear brakes before the front.

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2001 SLK 320 six speed manual
2014 Porsche Cayenne six speed manual

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