This is something that we hear often, that the car is getting old or worn out since it's getting a few miles on it. W always tell people that 100,000 is just getting broke in. If you're ready for a new car because you have the budget or that you just really want a new one then that's great, but if it is reliability
that you're worried about you shouldn't be. If you have done all of your scheduled maintenance and you take good care of your vehicle then it should last you for many more miles.