I saw a dealer confidential letter a few weeks ago stating FPV will be made defunct in 2014 and the XR8 will be re-released as a NA engine, not one with a pump on it. Late 2014 it stated.

Problem with the XR6 and XR6 turbo is the GCM is 4395kg and 4425kg respectively. Using the XR6 turbo with 2300kg tow package on it as an example:

XR6 turbo auto kerb mass is 1815kg
Subtract 1815kg (kerb mas) and 2300kg (trailer atm) from 4425kg = 310kg.

Then subtract towball weight from the 310kg, towball weight will be around 200kg min with a 2300kg trailer wheel load:

= 110kg.

I weigh more than 110kg, so I can't drive the car.

3/4 tonne suspension increases the GCM by about 200kg which would do it for me.
1 tonne suspension increases the GCM by just under 500kg.

So ideally i'd want the XR6 turbo with at least 3/4 tonne suspension, add the XR pack and the 19" wheels & tyres would still be within load limit. But Ford have so far said no. Next option is to buy the XR6 cab chassis with LPi engine which comes with 1-tonne suspension, BUT they won't do it with an XR pack (leather trim, sat-nav, dual zone climate air, reverse camera etc), they can keep the 19" wheels from the XR pack and leave the load rated 16" ones on it.