In addition to my above post, Hertz Australia keeps their BMW fleet for 12 months or 25,000kms

The standard fleet is 18 months or 60,000kms

I have seen quite a few new X3's around Melbourne and Sydney and also a few new X5's

When I do receive an older vehicle it has pretty low km's on it still, which is likely why they are still around. It also means you get unlimited KM's on shorter rentals as well as Hertz don't mind having a few more km's on it.

It's good to see new X3's and X5's in the fleet as it means that they will be staying around!

I would have preferred the ML/GL series from Mercedes but the new X5 is comparable to the GL now.

The X3 is still not that good, with the recent updates which basically gave Bi-Xenon lights as standard and slightly revised front and rear ends! Although it does also have standard sat nav