[sc_rufctr]

There really is no "Best Way".

It's a different path for everyone. Obviously there are some guide lines that you can follow but one of the best way to reduce the cost is by maintaining the car yourself.
And again that's not an option for everybody.

If you're a single gal who can't fix her own car then buying or leasing a new economical car may be the best way to go.

If you're someone who doesn't mind getting their hands dirty (Summer or Winter) with almost no notice then buying a bomb and fixing it yourself becomes an option.
But have you ever had to change a water pump at 8pm on a weeknight during the dead of winter because you needed the car the next day?
Take my word for it... It's not a lot of fun.

One thing I always think about... And that is TCOO. Or total cost of ownership.
What I do is buy a sensible robust car and the only thing it goes to a professional for is types an wheel alignment.

And I keep it until it falls apart... I don't' skimp on insurance.

Get the bonnet and roof repainted if it becomes sun faded. I can't stand ugly cars that have faded paint. They just look so getto to me.
Change the wheel bearings and suspension bushes when needed.
Change the oil twice a year and the filters once.
Fix what needs fixing but never go to after market wheels and junk like that.
I may put a good CD/MP3 player in but no sub woofer and extra amps. That's my daily.

My 911 is totally different. I keep that car as close to 100% as I can.
That means everything works and is in good order. Porsche genuine parts when available but otherwise good aftermarket parts.
It really is in mint condition so it's still worth what I paid for it 12 years ago. Although finding a buyer may take some time.