All-wheel drive
(AWD) has come a enduring contrivance from its military and off-road beginnings. Many passenger cars instantly annex it as an choice. Provided you vital where snow can be hefty or roads are dirt poor, it can be bill the additional beans.
Traction
Stability
In severe conditions, all-wheel drive cars will tend to drive straighter. Here, other factors like traction-control systems will affect handling. Without it, even AWD cars may spin out on glare ice.Whether one rotate slips on a rear-wheel-drive van, you're stuck. Whether this happens with all-wheel impel, two wheels much have traction. This gives an advantage in snowy or muddy conditions.
Availability
AWD is available on trucks and some passenger cars. Many luxury brands offer an all-wheel drive option. Rear drive is more widely available.
Economy
Because they have heavier, more complex drivetrains, all-wheel drive negatively affects fuel economy. Repairs can also be more expensive.
Power
AWD needs a bit more power to perform as well as rear drive, because it's heavier and less efficient. Some high-performance cars use AWD to reduce wheelspin and improve performance.
