Sorry, I think I was a bit unclear with regards to the 22 degree thing.
I wanted to know if it would be beneficial to 'slide' the template further froward so the next line on the template (the 22degree line) was effectively the rear of the truck. It would mean a shorter flat section over the roof to teardrop transition.
This would give a smaller cross section at the rear but would reduce load space.
I must admit, I hadn't really considered lift as an issue as when its converted to EV I thought the weight would negate any aero attributes but as I planned to test it with the existing IC engine, the rear is rather light when unladen...
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