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Old 02-10-2011, 02:54 PM   #20 (permalink)
aerohead
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found some data

Quote:
Originally Posted by max_frontal_area View Post
the arguments made here make sense... but my 2 vehicles dont.
1980 rabbit and jetta identical except for trunk on jetta and slightly "cleaner"
front. both have NA diesels, and manuals with very similar final drive.
the rabbit does 60 mpg, the jetta does 70. what gives???
max,I found some data at home for the VWs.
The Jetta is created by ADDING length to the Golf/Rabbit,about a foot.Frontal areas and Cds are virtually identical for the two cars with each generation.
Popular Science Magazine did some comparison tests in Jan/Feb 1983.At a steady 35 mph both cars got within 0.5 mpg,at 55 mph within 2.4 mpg.
The Jetta was turbo'd,the Rabbit NA.
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