Road Test: 2022 Mercedes-Benz S500 4Matic Mild Hybrid
Clean Fleet Report
SEPTEMBER 15, 2022
The 48-volt system also improves fuel economy, especially on the highway. liter at 21 mpg city/30 highway/24 combined. In 274 miles of driving through Southern California and using the air conditioning at most times, we averaged 27 mpg, but on a 150-mile all-freeway run using the adaptive cruise control set to 65 mph, we averaged 32.8
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