Considering buying an X5 for my Fiance - Need help on choosing which is best choice

[sleepybear]

Hi all -

Like the title says, I am considering upgrading my fiance to an X5 and have a few I am looking at. We both love the looks, and I want to get her something that is AWD and safer than her current car (and that I can enjoy driving from time to time)

I am currently looking at an 2008 with the 4.8i (96k odo) and a 2012 x35i (90k odo). Both appear to have more or less the same features, but I am just curious if there is a consensus on the V8 vs TT straight-6 in terms of reliability, maintenance, power/fun factor etc. I have done some research and know that the V8 can be a time bomb - but I don't know if those issues are just with the 4.4, the 4.8 or both.

Any input/threads you can point me towards would be appreciated!