A car, to me, is a device for effectively and cheaply travel a long distance in a reasonable amount of time. Nothing more and nothing less.
It's not a fashion accessory (Like some women treat it!).
It's not a penis extension (Like some men treat it).
None the less, I would like my device for fast, cheap, and effective travel to not look like it hasn't gotten any love for centuries. After all, if he (yes, I tend to refer to the cars as he-s.. I don't know why) rusts apart due to never getting cleaned and waxed, then he can't take me places.
And if I don't make sure he's running good, then he can't take me places.
So treating it with loving care and making sure it looks good is a matter of practicality and giving due thanks to something that is fun, affective, and helps you out.
At least, that's "The car thing" to me.