I wouldn't put 100 pounds; that's just overkill. Remember that the weight affects gas mileage as well.

295

It all depends on how someone drives. If you're one of those people who tears around like a bat out of hell, you're going to wear down [your car] much faster than someone who drives at a normal pace.

193

You've got your pads and your disks - the pads wear down. The semi-abrasive compound only lasts a certain amount of time until you're down to the steel plate.

122