What do you think is reasonable? I have a 41k mile Alpine White 2011 X5 Xdrive 5.0 Sports Package with:

Adaptive Drive
Rear Seat Entertainment
Heads Up Display
Most options - it doesn't have active steering, ventilated seats or active cruise. No leather dash.

It is Alpine White and is in excellent condition (9/10) - new tires, no major dings.

What do you think I might expect trading against a new 2014 X5 that has MSRP around $70k?

Thanks

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2011 X5 Xdrive50i Sport Package AD
2013 Touareg TDI
2012 Ford F250 Super Duty Powerstroke
1997 BMW M3 Sedan
1995 BMW 540i 6 Speed

Retired:
2008 Acura MDX (good car - yawn)
2002 M5 (I will miss this car forever)
1999 M3 (fun car X2)
1992 325IS DINAN (fun car)
1987 325IS (fun car)
1986 325IS (fun car)