They're fast...extremely popular and...

They can be scary!

What is the lure of this machine that roars to life

Driving some Utah teens to travel in packs...

Some of them, often dangerously darting in and out of traffic..

Taunting, daring..

Racing Utah roads so fast,

Sometimes, even authorities can't keep up with them!

News Specialist Karen Scullin shows you the dangers of a speeding bullet! What's being done in your neighborhood to bulletproof roads?

Read Special Report