A few years ago my mom convinced me that I should finally ditch my 1993 Toyota Tercel (which seemed to be running on only 3 cylinders) and upgrade to something nicer. After spending a few days test driving cars, I finally went out and bought a 2006 Mazda 3 Sport Hatchback. For the most part, it's been a really great car. The mileage isn't super amazing (it's not that bad either, but definitely no Prius), but it's fun to drive and it looks pretty sexy (for a hatchback). The only downside is that last year Mazda admitted to a problematic design flaw in the locking mechanism, one that allowed intruders ...