[aerohead]

Here are the mpg values CAR and DRIVER came up with for the 1980 Golf/Rabbit
30 mph = 76.0 mpg
40 mph = 67.6 mpg
50 mph = 56.7 mpg
60 mph = 46.6 mpg
70 mph = 34.7 mpg
80 mph = 26.4 mpg
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In testing of the '85 model gasoline Golf/Jetta (Cd 0.35/ Cd 0.36),Af= 20.7 sq-ft,curb weight = 2,277-lbs/2,335-lbs
CAR an DRIVER measured a road load of 13.0 hp @ 50 mph:
8.0 hp aero
5.0 hp friction and tire losses
With 85 bhp:
top speed Golf = 101 mph
top speed Jetta= 100 mph
EPA 27 mpg CITY
EPA 34 mpg HWY
C/D observed 23/27 under very spirited driving
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June '85,the Jetta GLI showed the following road loads:
30 mph = 5.0 hp
50 mph = 13.5 hp
70 mph = 25.5 hp
108 mph with 100 hp