What engine feature does the 2021 Dodge Durango SRT 392 notably exclude?

The 2021 Dodge Durango SRT 392 notably excludes the 5.7L HEMI V8 with Fuel Saver Technology. This engine is designed for vehicles that prioritize a balance between performance and fuel efficiency, utilizing technology that allows it to deactivate cylinders under light-load conditions to save fuel.

The 2021 Durango SRT 392 is focused on delivering high performance and is equipped with the 6.4L HEMI V8 engine that provides significantly more power compared to the 5.7L variant. This powerful engine comes with features like variable valve timing to enhance performance characteristics and efficiency, aligning with the performance-oriented goals of the SRT lineup.

In contrast, the other options involve engines that are either not part of the Durango lineup or are tailored for different models within the Dodge brand, such as the supercharged engine found in the Charger, which is designed for extreme performance and not used in the Durango. Therefore, recognizing which engines are included in the Durango's specifications helps clarify the uniqueness of the 2021 Durango SRT 392, emphasizing its focus on higher-end performance attributes over the more fuel-efficient options.