This car (ZX5-FS) is an interesting prospect, the weight is indeed morfe spread out but there is definite potential to move the weight a fair bit further forward than the D-J-4(4) cars, as people have said similar to the AC cars.
Why run a different layout at the worlds ...... well first off they would have done it for the same reasons as everybody else ran that layout .... on that track it worked. Why do something different now? Well that is called development, you can only assume that many of those testing the car share my feeling that the weight all being towards the rear isn't the way to go.
So why have they released the car with the cells so rearward? That will be to make the car easier to drive for the average joe ..... the spread out weight distribution will be quite gentle to react and those won't catch out the more novice driver with super sharp direction changes, also having weight over the rear will aid traction on the loose, weight at the front will give very smooth steering.
How has Gil been involved ...... well I don't know for sure but I bet that the car's actual weight distribution won't be far of that of a XX4 with the cells in the rear most position!
Jonathan ..... I'll take the first of the AC conversions when you do one ....