33/100

2004Minicompact CarsPremium

2004 Porsche Carrera 4 S Cabriolet Kit

EPA ID: 19426

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City MPG

Combined MPG

18MPG· Below Avg

Highway MPG

Fuel Economy Overview

The 2004 Porsche Carrera 4 S Cabriolet Kit achieves an EPA-estimated 18 MPG in combined city and highway driving, with 15 MPG in the city and 22 MPG on the highway. Powered by a 3.6L 6-cylinder engine paired with a manual 6-spd, this minicompact cars features 4-Wheel or All-Wheel Drive drive.

In terms of environmental impact, the 2004 Carrera 4 S Cabriolet Kit produces approximately 494 grams of CO2 per mile. This figure is measured under standardized EPA test conditions and represents tailpipe emissions only. For context, the average new vehicle sold in the United States produces approximately 400 grams of CO2 per mile, meaning this Carrera 4 S Cabriolet Kit has higher-than-average emissions in this regard.

The estimated annual fuel cost for this vehicle is $3,850, based on 15,000 miles of driving per year and current national average fuel prices. Compared to the average new vehicle, you would save $8,500 over a 5-year period. This calculation accounts for differences in fuel consumption efficiency and provides a practical measure of long-term ownership costs attributable to fuel economy.

Energy DNA

Vehicle ClassMinicompact Cars

Fuel TypePremium

Engine3.6L 6-cyl

AspirationNaturally Aspirated

TransmissionManual 6-spd

Drive Type4-Wheel or All-Wheel Drive

Green Scorecard

CO2 Emissions494 g/mi

Start-Stop SystemNot Equipped

GHG Score-1/10

Smog RatingN/A

Est. Annual Cost$3,850

5-Year Cost DeltaSave $8,500

Personalized Commute CalculatorEPA defaults to 55% City / 45% Hwy

55% City45% Highway

Adjust the slider to match your daily driving habits. City driving involves stop-and-go traffic under 45mph, while highway driving represents sustained speeds over 55mph.

Your Real MPG

17.5

Impact vs EPA

+$82

/ year

💨

Aerodynamic Speed Penalty

EPA highway tests average roughly 48 mph. Driving at 75 mph increases aerodynamic drag exponentially. Expect your real-world highway fuel economy to drop by roughly 15-20% at interstate speeds.

5-Year Total Cost of Ownership

Estimated Monthly Cost

$693/mo

Includes estimated depreciation, fuel, insurance, and state fees over 5 years. Does not include loan interest.

Annual Mileage15,000 mi

Value Depreciation

Est. value lost over 60 months

$17,500

42.1%

Fuel & Electricity

Based on National Average rates ($3.50/gal)

$14,583

35.0%

Estimated Insurance

Based on vehicle class risk profile

$9,125

21.9%

State Registration Fees

Based on National Average DMV base rates

$400

1.0%

Total 5-Year Cost$41,608

Recall Intelligence

98.7 metric tons CO₂

Equivalent To:

🌳 122 tree seedlings grown for 10 yrs

✈️ 8.2 cross-country flights/yr

Data Provenance

Data directly from the EPA National Vehicle and Fuel Emissions Laboratory. The combined rating is a weighted average (55% city, 45% highway). For official figures, visit fueleconomy.gov.