Never ever tally up the receipts for all that you have spent on your cars.

Don't ever consider your car as an investment that will appreciate in monetary value, as in 99.99% of the time, they don't.  Instead your investment appreciation will come in the form of the enjoyment of your car and the friendship of you fellow gearheads.

Consider copying a form of flattery either given or received.

Cars are like an addiction.  There are worse addictions to have - drugs, alcohol, gambling, etc., etc....

Everyone will have an opinion of your car.  The only one that matters is your own.

What you want versus what you need is sometimes mutually exclusive.

The saying of spending more to go faster is generally true, but doesn't mean that if you spend the money, you will be faster.

As in life, you usually get what you pay for.

If you can't do it yourself, don't complain about how much it will cost for someone else to do it for you.

The best modification is to the driver - in other words get to the track and practice.

There will always be someone faster, more powerful, more modified, etc., etc.........

Enjoy and drive your car and don't worry about the miles and the wear and tear that you accumulate.  Remember, your car is not an investment.  Are you keeping the mileage low for the enjoyment of the next owner?

Your car will never be finished.

In the end, remember it is just a car.