2006 Mazda MAZDASPEED MAZDA6 Grand Touring 4dr Sport Sedan AWD (2.3L 4cyl Turbo 6M)
Have had this car for over a year and love it. Have had very few problems outside of getting the keylees entry module replaced for the trunk, which was covered under warranty. Otherwise the car has been supurb. Power hits hard and is smooth to about 5500 rpm. I would suggest getting an upgrade to the ECU to tap into the full capibility of this turbo, but be aware the turbo is pretty well maxed out. There are several mods you can do to help this. Critically speaking, you must put 91+ in the car or it goes into limp mode, the build quality is a little less than the upper end cars so I have been noticing a few squeaks here and there, but nothing annoying as of yet.
Favorite feature is the keyless entry. You don't ever have to lock or unlock the car, it just knows when you're near it and allows entry. Also automatically locks the car too... very cool.
The car need a bigger turbo (stock one runs out of breath at 5500 rpm), better innercooler (front mount would be best to avoid heatsoak issues) and wider tires (stockers are 215mm).