All-wheel drive (AWD) has become a popular feature, especially in luxury vehicles like Lexus and Infiniti. It offers enhanced traction and stability compared to two-wheel drive, making it a desirable choice for drivers facing challenging road conditions or simply seeking a more confident driving experience. Understanding how AWD systems function and the specific implementations in Lexus and Infiniti vehicles can help you make an informed decision when purchasing your next car. This article delves into the intricacies of AWD, exploring its benefits, different types, and specific applications in Lexus and Infiniti models.

The Benefits of All-Wheel Drive (AWD) in Luxury Cars

AWD distributes power to all four wheels, providing several advantages:

• Improved Traction: AWD systems excel in slippery conditions like snow, ice, and rain, minimizing wheel spin and maximizing grip.
• Enhanced Stability: By distributing power more evenly, AWD helps maintain vehicle stability, especially during cornering and emergency maneuvers.
• Increased Confidence: Drivers often feel more confident and in control, particularly in adverse weather conditions.
• Better Off-Road Capability (in some models): Some AWD systems are designed for light off-road use, providing added capability on unpaved roads.

Types of AWD Systems Found in Lexus and Infiniti

AWD systems are not all created equal. Different types offer varying levels of performance and sophistication. Here are some common types:

1. Full-Time AWD: Power is constantly sent to all four wheels. This provides consistent traction and stability in all conditions;
2. Part-Time AWD: Typically operates in two-wheel drive until the driver engages AWD. Often found in older or more rugged vehicles.
3. Automatic AWD (or Reactive AWD): The system automatically engages AWD when it detects wheel slip or loss of traction. This is the most common type found in modern Lexus and Infiniti vehicles.
4. Torque-Vectoring AWD: This advanced system actively distributes torque between the rear wheels to improve handling and cornering performance.

AWD Systems in Specific Lexus and Infiniti Models

Let’s examine how AWD is implemented in specific Lexus and Infiniti vehicles:

Lexus AWD Systems

Lexus offers AWD in many of its models, often using a sophisticated electronic control system to manage power distribution. Some Lexus models use a full-time AWD system, while others employ a reactive system that engages AWD when needed. Lexus often utilizes a center differential to distribute torque between the front and rear axles.

Infiniti AWD Systems

Infiniti’s Intelligent All-Wheel Drive system is a reactive system that continuously monitors wheel spin, throttle position, and vehicle speed to optimize power distribution. It can send up to 50% of the engine’s power to the front wheels when needed, improving traction and control.

Comparing AWD Systems: Lexus vs. Infiniti

While both Lexus and Infiniti offer excellent AWD systems, there are subtle differences in their implementation and performance characteristics.

Feature	Lexus AWD	Infiniti AWD
Type	Full-time or Reactive (depending on model)	Reactive (Intelligent All-Wheel Drive)
Primary Focus	Smoothness, Refinement, and Winter Traction	Performance, Handling, and All-Weather Capability
Torque Distribution	Center Differential (typically)	Electronically Controlled Clutch
Common Models	RX, NX, ES (AWD options)	Q50, QX50, QX60 (AWD options)

FAQ: All-Wheel Drive (AWD) in Lexus and Infiniti Vehicles

Is AWD necessary in a Lexus or Infiniti?

Not necessarily. It depends on your driving conditions and preferences. If you live in an area with frequent snow or ice, AWD is highly recommended. If you prioritize performance and handling, AWD can also be beneficial. However, if you primarily drive in dry conditions, it may not be essential.

Does AWD improve fuel economy?

Typically, AWD vehicles have slightly lower fuel economy than their two-wheel drive counterparts due to the added weight and complexity of the system. However, the difference is often minimal.

Are AWD vehicles more expensive to maintain?

Potentially. AWD systems have more components than two-wheel drive systems, which could lead to higher maintenance costs over time. However, regular maintenance, such as fluid changes, can help extend the life of the system.

Can I turn off AWD in my Lexus or Infiniti?

Generally, no. Most modern Lexus and Infiniti AWD systems are automatic and cannot be manually turned off. They engage automatically when needed.