How hard can it be to buy brake pads?

[RDesign4Life]

Sites like Autodoc/Buycarparts often show oem part nos as well as specific model compatibility and will guarantee free exchange if you send them your VIN and they subsequently supply an incompatible part...

Eg Brembo part P86026
Similar to OE numbers (only for comparison)
VOLVO (31445985)
VOLVO (31445986)

Fitment VOLVO XC60 I (156) D4, Year of Construction 03.2015 - 02.2017, 1969 , 190 PS
VOLVO
VOLVO XC60 I (156) ( 05.2008 - ... , 136 - 329 PS)
2.0 T, Year of Construction 12.2009 - 12.2012, 1999 ccm, 203 PS
2.4 D, Year of Construction 04.2009 - 12.2010, 2400 ccm, 175 PS
2.4 D / D3 / D4 AWD, Year of Construction 05.2008 - 02.2017, 2400 ccm, 163 PS
3.2 AWD, Year of Construction 07.2009 - 12.2010, 3192 ccm, 238 PS
3.2 AWD, Year of Construction 03.2010 - 12.2015, 3192 ccm, 243 PS
2.0 D3, Year of Construction 04.2012 - 12.2015, 1984 ccm, 136 PS
2.0 D3, Year of Construction 03.2015 - 02.2017, 1969 ccm, 150 PS
2.0 D3 / D4, Year of Construction 03.2010 - 12.2014, 1984 ccm, 163 PS
2.0 D4, Year of Construction 10.2013 - 12.2015, 1969 ccm, 181 PS
2.0 D4, Year of Construction 03.2015 - 02.2017, 1969 ccm, 190 PS
2.4, Year of Construction 10.2013 - 12.2015, 2400 ccm, 181 PS
2.4 D4 AWD, Year of Construction 03.2015 - 02.2017, 2400 ccm, 190 PS
2.4 D5, Year of Construction 06.2011 - 02.2017, 2400 ccm, 215 PS
2.4 D5 AWD, Year of Construction 05.2008 - 12.2009, 2400 ccm, 185 PS
2.4 D5 AWD, Year of Construction 07.2009 - 06.2011, 2400 ccm, 205 PS
2.4 D5 AWD, Year of Construction 04.2011 - 12.2015, 2400 ccm, 215 PS

[Volvocano]

The only thing that matters to me these days with brake pads is noise/grab when parking or in traffic - particularly with automatics. All braking systems generate more than enough power to kick the electronic nannies into life regardless of brake pad fitted - and I haven't experienced brake fade since the late 1990s when driving my supercharged Jag a bit spiritedly (racing a TVR between roundabouts - naughty).