Gamepressure.com is a great source for PC gaming guides if you like to see a combination of written and video tutorials on how to play a game. Please follow the link below to get to the key sections to learn about Car Mechanic Simulator 2018 or 2015.
Car Mechanic 2018 Gamepressure Guide Page
Car Mechanic 2015 Gamepressure Guide Page
NOTE: Car Mechanic Simulator 2018 requires a higher end PC or laptop!! The Car Mechanic 2015 is nearly as good, and it can run on older computers.