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Last Updated: 8/19/2025

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2018 Porsche Cayenne S e-Hybrid

MPG & Fuel Economy Data

Quick Summary

The 2018 Porsche Cayenne S e-Hybrid has an estimated 27.0 MPGe combined. This premium gasoline/electricity-powered hybrid vehicle offers 26.0 MPGe in the city and 29.0 MPGe on the highway.  Check out its full EPA-estimated fuel economy data below.

Premium Gasoline Fuel Economy

Combined22.0 MPG

City21.0 MPG

Highway24.0 MPG

Environmental Impact

CO₂ Emissions261 g/mi

GHG Score8/10

Electricity Fuel Economy

Combined47.0 MPGe

City47.0 MPGe

Highway46.0 MPGe

Plug-in Hybrid (PHEV) Mode

This vehicle features plug-in hybrid technology, offering enhanced fuel efficiency through electric power.

Combined27.0 MPGe

City26.0 MPGe

Highway29.0 MPGe

PHEV Features

Charge-Depleting Operation: This PHEV uses only electricity until the battery is depleted, then switches to gasoline.

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Environmental Performance

With a Greenhouse Gas Score of 8/10, the 2018 Porsche Cayenne S e-Hybrid demonstrates excellent environmental performance in its class. This high score indicates a significant reduction in greenhouse gas emissions compared to other vehicles.

The vehicle produces approximately 261 grams of CO₂ per mile under typical driving conditions. This represents average carbon emissions for its vehicle type.

Technical Specifications

This standard sport utility vehicle 4wd features a 3.0L 6-cylinder engine, paired with a automatic (am8) transmission and all-wheel drive drivetrain. It includes start-stop technology to improve fuel efficiency in city driving conditions. The engine is supercharged for enhanced performance.

Maximizing Fuel Economy

To achieve the best fuel economy in your 2018 Porsche Cayenne S e-Hybrid, consider these tips:

  • Maintain steady speeds and avoid rapid acceleration
  • Keep tires properly inflated to manufacturer specifications
  • Remove excess weight and roof cargo when not needed
  • Follow recommended maintenance schedules
  • Utilize the vehicle's start-stop technology in city driving

Porsche Cayenne S e-Hybrid automatic (am8) Historical Fuel Efficiency

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How Many Miles Do You Drive?

miles/year
monthly:1,250miles/month
weekly:288miles/week
daily:41miles/day

This Fuel Savings Calculator tool is provided for informational and educational purposes only. The MPG data used is sourced from the U.S. Environmental Protection Agency (EPA), an official government resource, and while efforts are made to ensure accuracy, discrepancies or updates may occur. Calculations are based on standard assumptions and estimates, which may not reflect individual circumstances or real-world conditions. Users are responsible for verifying results with their own data and should consult additional resources or/and professionals for critical decisions. This tool is provided "as is" without warranties of any kind, and the developers disclaim any liability for decisions or actions taken based on its output. The tool may be updated or modified without notice, affecting its functionality or results. By using this tool, you acknowledge and agree to these terms.

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These vehicles are in the same class (Standard Sport Utility Vehicle 4WD) and offer comparable fuel economy ratings.

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