Reply To: 2017 Q4 Build Challenge – Emergency! Home › Forums › MOCs › Build challenges! › 2017 Q4 Build Challenge – Emergency! › Reply To: 2017 Q4 Build Challenge – Emergency! October 17, 2017 at 4:13 pm #23814 Will McDineParticipant Side note: ambulances and or any vehicle with a a ford, dodge, or Chevy cab can be 5 studs wide.