Carlos, you can always move the max roof camber forward.
This would allow you to "Kamm" the whole rear half of the car (both roof and sides). The rear extension would be the ideal 12° cherry topping.
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e·co·mod·ding: the art of turning vehicles into what they should be
What matters is
where you're going, not
how fast.
"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell
[Old] Piwoslaw's Peugeot 307sw modding thread