2 cinqster: Please.
As you see the reality is much more bad than I has shown earlier.
The wheelbase is 108,5mm by platform and approximately 110mm by arches, but it must be 113,3mm!!! The body lenght is 174mm without front spoiler, but it must be 181,9mm minus about 3mm for spoiler=about 179mm!!! Yes, as you said the roof is higher, shorter and more round in the rear. All the rest rough mistakes you may to see on my new pic. above.