Appearance

• Alloy wheels typically come in a wider variety of styles than steel wheels, and they can give your car a more custom look than the manufacturer's wheels.
  
  

Handling

• Alloy wheels tend to be much lighter than steel wheels and can provide improved handling.
  
  

Braking and Acceleration

• Alloy wheels can also provide a higher responsiveness during braking and acceleration since the weight of vehicle's rotational mass is diminished.
  
  

Brake Cooling

• Since alloy wheels are better conductors of heat than steel wheels, they are better at allowing heat to dissipate from the brakes. This can increase the life of your brakes and reduce the chance of brake failure.
  
  

Rigidty

• According to Tirerack.com, a leading alloy wheel retailer, alloy wheels also reduce wheel and tire deflection in cornering. This keeps the shape of your tire stiff and keeps the sides from bulging. This feature is especially important if you have high performance tires.