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1990 Vehicles by Porsche
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Model
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MPG (city)
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MPG (hwy)
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Annual
Fuel
Cost*
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Greenhouse Gas
Emissions
(tons/yr)*
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EPA
Air
Pollution
Score
From 0 to 10 (best)
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Porsche 928 S4
8 cyl, 4.9 L, Automatic 4-spd, Premium |
14 |
17 |
$3962
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12.20 |
NA
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Porsche 928 S4
8 cyl, 4.9 L, Manual 5-spd, Premium |
11 |
18 |
$4241
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13.10 |
NA
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Annual Fuel Costs and Greenhouse Gas Estimates are based on 45% highway driving, 55% city driving, and
15000 annual miles.
Assumed Fuel Prices:
- Regular: 3.72
- Premium: 3.96
- Diesel: 3.96
- CNG: 1.65
- Electricity: 0.08 per kilowatt hour
- E85: 3.27
- LPG: 2.10
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