The worst thing you can do to a car is drive it in stop and go traffic, thats what many call "babied". This is when you get more wear.
An abused car is the one that is pushed close or above valvetrain limits, (like when racing at the 1/4 mile), and with tons of stop and go.
A babied car is the one that runs at a constant speed, these tend to have less engine and transmission wear...though they could have more miles.
Something else to look at is the type of engine oil you are using. I find 15W40 oils better for summer, and 5W50 as an option for winter (depending on location of course).
The best thing you can do is take it for a 2-3 hour trip, at a more less constant speed, could be above 70mph

..this will help clean the chambers, rings and valve seats from carbon buildup. You could run some THROTTLE BODY CLEANER through the intake before doing this.