Véhicules verts!

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Across
  1. 6. wheel
  2. 8. seat belt
  3. 9. certificate
  4. 10. gas emission
  5. 11. traffic jam
  6. 14. electric
Down
  1. 1. to drive
  2. 2. to move along
  3. 3. driver's licence
  4. 4. brakes
  5. 5. safety
  6. 7. vehicle
  7. 12. noise
  8. 13. airbag