While 4WD/AWD provides better traction when accelerating in slippery conditions, it doesn't necessarily improve braking or cornering ability. All vehicles, regardless of drive system, rely on tires for braking. Winter tires on a RWD vehicle can often outperform all-season tires on a 4WD vehicle in winter conditions. 4WD/AWD helps you get moving and maintain control when accelerating, but proper winter tires are essential for all aspects of winter driving safety regardless of drivetrain.

Yes, RWD vehicles can perform adequately in winter conditions with proper preparation. The key elements are: 1) High-quality winter tires (the most important factor), 2) Adding weight over the rear axle (sandbags or other ballast), 3) Driving cautiously and understanding vehicle dynamics in low-traction conditions, and 4) Possibly using traction aids like tire chains in extreme conditions. Many RWD vehicles with proper winter tires perform well in snowy climates, though 4WD/AWD still provides an advantage in deep snow or when climbing steep, slippery hills.

The main differences are: 1) 4WD (Four-Wheel Drive) typically refers to systems designed for off-road use with selectable modes (2WD, 4WD High, 4WD Low) and often includes a locking center differential or transfer case. 2) AWD (All-Wheel Drive) is typically full-time or automatically engaged systems designed for on-road use, providing improved traction in various conditions without driver intervention. AWD systems are generally more sophisticated with electronic controls that can vary torque distribution front-to-rear and sometimes side-to-side, while traditional 4WD systems often have fixed or manually selectable torque splits.

Generally yes, 4WD/AWD systems require additional maintenance including: 1) More frequent fluid changes for differentials and transfer cases, 2) Additional wear items like CV joints and driveshaft components, 3) Potentially more complex tire replacement (some AWD systems require all four tires to be replaced simultaneously to avoid drivetrain damage), and 4) Higher likelihood of component failure due to increased complexity. Maintenance costs are typically 20-30% higher than equivalent RWD vehicles, though this varies by specific system and vehicle.

For towing, it depends on conditions: 1) RWD is often preferred for towing on dry pavement as it puts weight on the drive wheels when loaded, improving traction. Many heavy-duty trucks use RWD or selectable 4WD. 2) 4WD/AWD is better when towing on slippery surfaces, launching boats on wet ramps, or in poor weather conditions. 4WD provides extra traction when starting on slippery surfaces with a heavy load. Many modern trucks offer both RWD and selectable 4WD, allowing drivers to choose based on conditions. The vehicle's tow rating is more important than drivetrain type for determining maximum towing capacity.