Trust is important and there are no shortcuts to this, it takes a while to build up. However, if you have a good reputation with a loyal customer base this can help to give new customers confidence that you are trustworthy.
What I do find worrying about this is the fact that we are sharing the road with motorists who are unaware that their vehicles are dangerous. Let’s face it MOT test levels are pretty low and only ‘on the day’. Servicing should also be taking into account what condition things are going to be in in the future too. Plus, do people not understand that repairing something before it is broken is generally far cheaper (and far less dangerous) than waiting until it does break?