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2025 Porsche 718 Spyder RS vs 2027 Mercedes-Benz AMG GT 55 4matic Plus (coupe)

EPA figure2025 Porsche 718 Spyder RS2027 Mercedes-Benz AMG GT 55 4matic Plus (coupe)
Model year20252027
Body · driveTwo Seaters · Rear-Wheel Drive · GasTwo Seaters · All-Wheel Drive · Gas
Combined MPG1616
City / highway MPG14 / 1914 / 20
Fuel a year$5,150$5,150
Tailpipe CO₂ (g/mi)551558
Engine4.0 L 6-cyl4.0 L 8-cyl turbo
TransmissionAutomatic (AM-S7)Automatic 9-spd

▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.