Which of the following is NOT a standard of the Trail Rated system?

The Trail Rated system, developed by Jeep, is designed to evaluate a vehicle's capability to handle various off-road conditions. This system consists of several key standards that assess critical attributes required for off-road performance.

Traction, maneuverability, and articulation are all vital aspects of this system. Traction refers to the vehicle's ability to maintain grip on different surfaces, which is crucial for navigating through mud, rocks, and other challenging terrains. Maneuverability involves the vehicle's agility and control, allowing it to navigate tight spaces and obstacles effectively. Articulation measures the suspension's flexibility, ensuring that the wheels can move independently over uneven surfaces for better ground contact and stability.

However, acceleration is not a focus of the Trail Rated standards, which prioritize off-road capabilities rather than on-road speed or performance. While acceleration might be important for regular driving, it does not directly correlate with the performance of a vehicle in tough off-road conditions, where traction, maneuverability, and articulation are paramount. Therefore, acceleration is the correct choice for this question, as it does not align with the Trail Rated system's core standards.