Descr1: 1. A person holds a gun on the passenger seat of a pickup truck
  2. Another person's body slides on the road and passes the pickup truck
  
Descr2: 1. A man is laying on a road beside a truck
  2. The man slides along the road beside the truck as it drives forward
  3. The man slides forward ahead of the truck
  4. The man slides forwards diagonally across the road