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2015 McLaren Automotive 650S Spider vs 2015 Mercedes-Benz C300

EPA figure2015 McLaren Automotive 650S Spider2015 Mercedes-Benz C300
Model year20152015
Body · driveTwo Seaters · Rear-Wheel Drive · GasCompact · Rear-Wheel Drive · Gas
Combined MPG1828
City / highway MPG16 / 2225 / 33
Fuel a year$4,550$2,950
Tailpipe CO₂ (g/mi)499318
Engine3.8 L 8-cyl turbo2.0 L 4-cyl turbo
TransmissionAutomatic 7-spdAutomatic 7-spd

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