36/100
2020Large CarsPremium

2020 Porsche Panamera 4S ST

EPA ID: 41924
18
City MPG
20
Combined MPG
20MPG· Average
24
Highway MPG

Fuel Economy Overview

The 2020 Porsche Panamera 4S ST achieves an EPA-estimated 20 MPG in combined city and highway driving, with 18 MPG in the city and 24 MPG on the highway. Powered by a 2.9L 6-cylinder turbocharged engine paired with a automatic (am-s8), this large cars features 4-Wheel Drive drive.

In terms of environmental impact, the 2020 Panamera 4S ST produces approximately 440 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 Panamera 4S ST has higher-than-average emissions in this regard.

The estimated annual fuel cost for this vehicle is $3,450, based on 15,000 miles of driving per year and current national average fuel prices. Compared to the average new vehicle, you would save $6,500 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 ClassLarge Cars
Fuel TypePremium
Engine2.9L 6-cyl
AspirationTurbocharged
TransmissionAutomatic (AM-S8)
Drive Type4-Wheel Drive

Green Scorecard

CO2 Emissions440 g/mi
Start-Stop SystemEquipped
GHG Score4/10
Smog RatingN/A
Est. Annual Cost$3,450
5-Year Cost DeltaSave $6,500

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
20.3
Impact vs EPA
$-36
/ 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
$905/mo
Includes estimated depreciation, fuel, insurance, and state fees over 5 years. Does not include loan interest.
15,000 mi
Value Depreciation
Est. value lost over 60 months
$28,000
51.5%
Fuel & Electricity
Based on National Average rates ($3.50/gal)
$13,125
24.2%
Estimated Insurance
Based on vehicle class risk profile
$12,800
23.6%
State Registration Fees
Based on National Average DMV base rates
$400
0.7%
Total 5-Year Cost$54,325

Recall Intelligence

Campaign #23V033000·2023-06-29
critical
Component: ELECTRICAL SYSTEM

Porsche Cars North America, Inc. (Porsche) is recalling certain 2017-2021 Panamera, Panamera 4, Panamera GTS and Panamera Turbo vehicles. Please see the recall report for a complete list of specific model names and model years. Humidity may enter the external coolant pump for the climate control system and cause an electrical short circuit.

Consequence & Remedy

Consequence: An electrical short circuit increases the risk of a vehicle fire.

Remedy: Dealers will replace the external coolant pump and inspect and replace the plug-in connection, if necessary, free of charge. Interim owner notification letters informing owners of the safety risk were mailed March 6, 2023. Owners will receive a second notice once remedy becomes available, anticipated July 2023. Owners may contact Porsche's customer service at 1-800-767-7243. Porsche's number for this recall is APA1.

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Looking for comprehensive historical data?

NHTSA FARS (Fatal Crash History) and broader generational safety trends are aggregated at the model level rather than by specific engine configurations. View the complete historical data profile for all Porsche Panamera 4S ST configurations.

View Model History

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Fuel Cost Analysis

Annual Fuel Cost$3,450
vs. Avg Vehicle (5 yrs)Save $6,500

Based on 15,000 miles/year and current fuel prices.

Efficiency Breakdown

City18 MPG
Highway24 MPG
Combined20 MPG

Estimated Lifetime Carbon Footprint

(Based on 200,000 miles driven)

88.0 metric tons CO₂
Equivalent To:
🌳 109 tree seedlings grown for 10 yrs
✈️ 7.3 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.