X6 35i vs RRS 4.2 S/C

[maximus6]

Can not choose between used X6 and RRS. Now own X5 E53 4.8is.

X6 is faster than RRS.
X6 not behaves as SUV on the road which is good.
X6 has newer Navi and control systems

RRS looking great outside!
RRS is bigger than X6
RRS has old fashioned interior from Discovery3.

Has anybody the same concerns?

P.S. Not talking about new RRS S/C 5.0 which is best but very expensive.

[Martin_X5]

I had the RRS 2.7HSE, but now have the X6 3.5, Differences, BMW works every time, Much faster, boot same size just not the height, BMW sat nav much newer but not as easy to use as the RRS, find the x6 more comfortable to drive, RRS was always breaking down.