A clocked car can leave you exposed to unpredicted risks. For instance, if you buy a car with 20,000 km on the odometer, certain parts like tires, brakes, and a timing belt would be good to go for a few thousand more kilometres. However, if the car clocked 50,000 km, these components may be at the end of their life. So, yes, it is very crucial to know the exact mileage of the car you want to buy for your safety.