Something doesn’t add up: aero drag coefficient

[RedDevil]

What gear did you use for your power calculations? The sixth gear is long, at 162 km/h you will rev the engine way below the revs for max power. So you'd use less than 63 kW, and your calculations are off by less.
Your estimate for rolling resistance seems low to me, but I really have no data, just gut feeling.
Wind, in fact any wind but straight tail wind, will raise air resistance too. Side wind even more so than head on. They really should publish a car's air resistance when the air comes in at a 10 degree angle, you'd he amazed how much impact that has.

[aerohead]

I went through the limited info I have on EVs and am posting,so as to help us think about these:
*Texas CO-OP Power(Magazine) was given access to a Toyota Prius PHEV.
They reported a range for the car of 13-miles (21.3 km) at 60 mph (98 km/h) which works out at 2.95 miles/kWh (4.84 km/kWh).
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Google.org's Toyota Prius PHEV-30,Hymotion Inc.'s 5kWh Lithium-polymer kit promised 30-miles city range.
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Toyota's pre-production Prius PHEV was rated at a max.62 mph before enngine would kick in,at 8-miles range (13 km)
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The Chevy VOLT returns about 35-miles with 16-kWh pack,for 2.187 mi/kWh (3.586 km/kWh)
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The 2011 SMART ED got 3.818 miles/kWh (6.25 km/kWh)
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The NISSAN LEAF got 4.08-4.7 miles/kWh (6.68-7.7 km/kWh
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The 1992 NISSAN FEV got 4.5 miles/kWh (7.37 km/kWh)
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The 1992 Toyota Paseo 'AESOP' got 1.82 miles/kWh under slow city driving (2.98 km/kWh)
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The 1991 GM IMPACT got 8.9 miles/kWh
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A generic EV (ROAD & TRACK) 1992, absorbed 3kW at a constant 30 mph (49 km/h)
With air conditioning on the same car absorbed 4.2 kW at same speed.
'The most efficient A/C will cut range by 20%.'(CAR and DRIVER,May,'92)
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The 1996 GM EV 1 was rated at 79-miles 'combined.'
with 30 kWh/100 miles CITY
with 25 kWh/100 miles HWY
4.846 miles/kWh combined (7.944 km/kWh)
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The Mitsubishi i-MiEV returned 3.125-5.0 miles/kWh (5.122-8.196 km/kWh)
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William H.Kemp's 'ZERO-CARBON CAR',Maxda MIATA EV got 2.583 miles/kWh (4.236 km/kWh)
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The 1992 BMW E1 returned 5.98-8.07-miles/kWh (9.8-13.2 km/kWh)