2026 Jeep Grand Cherokee Summit Tested With Hurricane Engine

The 2026 Jeep Grand Cherokee Summit, equipped with Stellantis's new Hurricane turbo four-cylinder engine, has undergone testing, revealing performance that does not live up to the engine's powerful namesake. This updated powertrain replaces the previous 3.6-liter V6 engine, aiming to offer improved power and efficiency.

Initial assessments indicate that while the Hurricane engine provides adequate power for daily driving, it struggles to deliver the robust acceleration and towing capability expected from a vehicle in the Grand Cherokee's class. Fuel economy figures also reportedly fall short of projections, raising questions about the engine's overall effectiveness in this application. The engine's output is rated at 271 horsepower and 370 pound-feet of torque, a notable increase over the outgoing V6's 293 horsepower and 260 pound-feet of torque, yet real-world performance metrics suggest a less impactful gain.

Despite the engine's shortcomings, the 2026 Grand Cherokee Summit retains many of its signature luxury and off-road features. The interior continues to offer premium materials and advanced technology, while the vehicle's chassis and suspension are designed to handle diverse driving conditions. However, the powertrain's performance is a critical component, and its perceived underperformance could affect consumer perception and market competitiveness.

Stellantis has been progressively rolling out the Hurricane engine across its various brands and models, emphasizing its role in enhancing performance and meeting stricter emissions standards. The application in the Grand Cherokee Summit, a flagship model, was expected to showcase the engine's full potential. Further testing and consumer feedback will be crucial in determining the long-term success of this engine in the updated Jeep lineup.