2013 X5 3.5d vs. 3.5i comparisons

[sfmars]

Hi Everyone,

This is my first post on this forum and I'm hoping to enlist the feedback of some experts with my question.

I'm in the market for a 2013 X5 and am curious to know if the 3.5d has a softer suspension compared with it's counterpart the 3.5i.

When I test drove both cars, it felt like the 3.5d was a bit softer and there was more body roll compared to the 3.5i version. Both cars had the 3rd row seats.

Am I just imagining this or has anyone else had the same experience?

The second question I have is, does the power acceleration die off in the 3.5d version at at higher speeds 80+? I've been reading that eventhough the car has a lot of torque, there's much less pull when you are in the higher RPMs.

Can someone comment on these two questions?

Thanks!