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So here are the goal specs that I have tentatively:
Range: 100 miles
Max Speed: 85 mph
Cd: .35
Frontal Area: 10 sq feet
CdA: .35
Weight with driver: 500 pounds
With these specs PAMVEC tells me I will need about 5 kw hours of battery pack and can expect around 650 mpg equivalent for performance.
The biggest limiting factor is the CdA which is quite high at the moment and is limiting both the top speed and range.
A very rough guestimation for the cost is around 10 grand at the moment, figuring roughly $1000/kw-hour for the battery pack.
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