Vauxhall Mokka (2012 - 2016) 1.6i Exclusiv 5d Owner Review

Since picking up the car on 31 May 2016 my daughter has on 4 separate occasions had the car lose electrical power whilst driving. According to Vauxhall there is nothing wrong with the car. Luckily when the car has cut out she has been in situations where traffic was light and she could attempt to restart the car. As she looks after my grandchildren one of which is a 5 month old baby I do not feel the car is safe. Can anyone advise on a way ahead. Having had the car into their mechanics my daughter has no confidence in the car or Vauxhall.