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Old 08-31-2009, 09:19 AM   #3 (permalink)
lunarhighway
Master EcoModder
 
Join Date: Feb 2008
Location: belgium
Posts: 663

vectra a - '95 Opel Vectra GLS
90 day: 37.51 mpg (US)
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yea at first it screams "concept car", but than when you imagine it in black...it wouldn't look that much out of place next to curent bmw's

things like the A pillars and the shape of the bonnet.

one thing that got me thinking however is that like some curent bmw's this car has an active grillblock.
What this basically means is that this car is going to have a variable Cd! it will have more air resistance with the grill open than closed and the difference could be rather big... so than how do you come up with a single Cd figure for the car?
do you take the lowest (tempting ) a 50% average or something calculated from the ammount a grill is open during a cerain test cycle?
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