2027 Mercedes-Benz CLE Coupe Fuel-Efficiency and Performance Features Explained

2027 Mercedes-Benz CLE Coupe Fuel Economy for Daily Driving 

Luxury coupes have traditionally asked buyers to accept a fuel economy penalty in exchange for the performance and visual character that make them worth owning — and for previous generations, that trade-off was simply the cost of the category. The 2027 Mercedes-Benz CLE Coupe performance and fuel-efficiency features explained here reveal a lineup where mild-hybrid technology has meaningfully changed that equation, with integrated starter-generator systems across all configurations contributing to efficiency during cruising and energy recovery during deceleration without compromising the powertrain character that coupe buyers specifically choose over sedan alternatives. Three configurations — CLE 300 4MATIC®, CLE 450 4MATIC®, and AMG® CLE 53 4MATIC+® — cover a performance spectrum from composed turbocharged touring to AMG®-enhanced inline-six output, each with 4MATIC® all-wheel drive standard and 9G-TRONIC automatic transmission managing power delivery. Mercedes-Benz of Scottsdale carries the 2027 CLE Coupe across all three configurations for buyers who want to compare the powertrain differences in person before committing. 

Which 2027 CLE Coupe Models Are Available? 

Three Configurations, One Platform 

CLE 300 4MATIC® enters the lineup with a turbocharged four-cylinder and mild-hybrid assistance as the most efficient configuration — the right choice for buyers who prioritize daily refinement and fuel economy alongside coupe styling without the powertrain intensity that upper configurations deliver as their primary selling point. CLE 450 4MATIC® raises the specification to a turbocharged inline-six with EQ Boost mild-hybrid integration, producing meaningfully stronger performance without the full AMG® treatment — an intermediate position that suits buyers who want noticeably more urgency than the four-cylinder provides without the AMG® price premium. AMG® CLE 53 4MATIC+® represents the performance flagship of the standard CLE lineup — AMG®-tuned inline-six with enhanced mild-hybrid support, AMG®-specific suspension calibration, and the driving character distinction that AMG® engineering produces beyond powertrain output alone. 

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CLE Coupe Performance at a Glance 

CLE 300 4MATIC® produces 255 horsepower and 295 lb-ft of torque from its turbocharged four-cylinder, reaching 60 mph in approximately 6.1 seconds — numbers that suit composed, confident daily driving without positioning the vehicle as a performance priority. CLE 450 4MATIC® steps up to 375 horsepower and 369 lb-ft of torque from the turbocharged inline-six with EQ Boost adding 20 supplemental horsepower during acceleration, arriving at 60 mph in approximately 4.5 seconds through the 9G-TRONIC 9-speed automatic that manages both powertrains. AMG® CLE 53 4MATIC+® reaches 443 horsepower and 413 lb-ft of torque with 0-to-60 mph in 3.9 seconds — the AMG SPEEDSHIFT® TCT 9G transmission handles shift events at the pace the powertrain’s output demands rather than the relaxed cadence that comfort-priority calibration applies to the standard 9G-TRONIC in lower configurations. 

How the CLE Coupe Mild-Hybrid System Works 

Mild-hybrid integration across all CLE Coupe configurations uses a belt-integrated starter-generator that serves three functions simultaneously — providing supplemental torque during acceleration, recovering braking energy to charge the 48-volt battery rather than dissipating as heat, and enabling engine stop-start operation that’s more refined than conventional starter-motor systems produce at low-speed stops. EQ Boost in CLE 450 and AMG® CLE 53 applications adds the supplemental horsepower contribution that makes mild-hybrid assistance a performance benefit rather than purely an efficiency mechanism, filling the low-rpm range where turbocharged engines historically show their greatest response limitation. Buyers don’t manage the mild-hybrid system consciously — it operates transparently within the powertrain’s normal behavior, which is precisely the integration philosophy that makes it useful rather than adding operational complexity to the ownership experience. 

What Is the CLE Coupe Fuel Economy? 

EPA fuel economy ratings for the 2027 CLE Coupe vary by configuration — CLE 300 4MATIC® returns an EPA-estimated 23 mpg city and 33 mpg highway, while CLE 450 4MATIC® rates at approximately 22 mpg city and 31 mpg highway with the inline-six’s additional output reflected modestly in the combined figures. AMG® CLE 53 4MATIC+® carries the performance configuration’s expected efficiency reduction, returning figures that reflect the powertrain’s capability priority — specific EPA ratings should be confirmed against current model year documentation as figures are occasionally revised during the production year. Real-world fuel economy varies from EPA ratings based on driving style, route composition, climate control load, and driving speed — the figures provide a comparative baseline between configurations rather than a guarantee of what any individual owner will experience in their specific driving conditions. 

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Performance and Efficiency for Everyday Driving 

Scottsdale’s commuting pattern — a mix of surface street stop-and-go and sustained freeway driving — suits the mild-hybrid system’s energy recovery and supplemental torque contribution more directly than purely highway driving would, because the regenerative braking opportunities that urban deceleration provides feed back into the 48-volt battery more consistently than highway cruising at constant speed does. Longer Arizona drives toward Sedona, Prescott, or Flagstaff put the CLE Coupe’s powertrain in sustained highway cruise conditions where the turbocharged engine’s efficiency at partial throttle and the mild-hybrid’s load reduction during coasting contribute to fuel economy that approaches or matches EPA highway figures more closely than urban driving typically does. Choosing between CLE 300 and CLE 450 based on daily driving character rather than purely fuel economy produces a more satisfying long-term ownership outcome — the efficiency difference between configurations is real but modest, while the performance character difference is more immediately apparent on every drive. 

Explore the 2027 Mercedes-Benz CLE Coupe Fuel-Efficiency at Mercedes-Benz of Scottsdale

Comparing the 2027 Mercedes-Benz CLE Coupe fuel-efficiency and performance features across all three configurations is most useful when the comparison happens in actual vehicles on Scottsdale roads rather than between specification tables. Visit Mercedes-Benz of Scottsdale to evaluate current CLE 300, CLE 450, and AMG® CLE 53 inventory, experience the powertrain character differences through back-to-back test drives, review financing options that make each configuration accessible within your ownership parameters, and discuss which mild-hybrid system behavior and performance level best serves the way you actually drive. Our team is ready — stop by and find the right CLE Coupe for your daily life.