You want your car to be in top condition, so you take care of it with routine maintenance: checking pressure in your tires, having your oil changed regularly, immediately servicing any problems.
This means your car will be far more reliable and will give you many years of good service. But what about your insurance premiums? You get a break on your price for being a good driver; what about for being a good car owner?
Unfortunately, insurance companies do not look directly at how well you maintain your vehicle.