[aerohead]

I struck out on a decent photo so you're going to have to be the boss of that.
I did find a road test review for a '91 Sentra SE-R by CAR and DIVER:
*Length--------------- 170.3 "
*Height--------------- 53.9 "
*Frontal Area--------- 20.2 sq-ft
*Curb Wt.------------ 2,594-lbs
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*Road horsepower @ 30 mph------------- 4
*"--------------- @ 50 mph------------- 12
* " ------------- @ 70 mph-------------- 28
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My CRX uses:
* 2.97 hp @ 30 mph
* 8.55 hp @ 50 mph
* 19.5 hp @ 70 mph
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Your Sentra has more frontal area than the CRX,but if you followed the 'Template' further out with a longer tail you could match its drag and mpg.Low 60s.