I think they float around 7-12k for ones that need TLC. Nice examples I've seen are $12k+

$16k, 70k miles: https://www.avaziauto.com/2004_BMW_X...D_27818107.veh
$13k, 83k miles: https://www.mancusomotorsports.com/i...y/bmw/x5/1903/
~$19k, 63k miles: https://www.mancusomotorsports.com/i...y/bmw/x5/1944/
~$15k, 89k miles :https://www.cars.com/vehicledetail/d...0095/overview/

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2004 BMW M3 Individual
2009 BMW E70 X5 35d
2011 BMW E70 X5 35d - Totaled
2009 BMW M3 E90 - SOLD
2006 E53 X5 4.8iS - SOLD
2002 E46 M3 Convertible - SOLD
2006 E46 M3 ZCP - SOLD
2011 E70 X5 35d - SOLD
2000 E39 ///M5 - SOLD
2003 E53 X5 4.6iS - SOLD
2006 E83 X3 3.0i MSport - SOLD
2000 E46 323Ci - SOLD