It’s not really ideal to have no front end from an aerodynamics perspective

they use fluid dynamics these days, the wind tunnel is a computer.

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Canoo:

BODY
• Steel body
• Drag coefficient: CdA 1.04 (Cd 0.33)
• Cabin mounted on rolling chassis (skateboard architecture)
• Thermoplastic (thermoplastic polymer) outer skin is robust, lightweight, corrosion free and dent resistant

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.33 is towards the bottom, but not bad (F150 is .5, Volvos come in around .3)

https://www.myevreview.com/comparison-chart/drag-coefficient