The best replacement for mazda 6 is mazda 3.

The best alternatives to mazda 6 are rated as following:
★★★★★  mazda 3
★★★★★  honda accord
★★★  nissan altima
★★  ford fusion
★★  toyota camry
★  camry
★  accord
★  kia optima
★  honda civic
★  cx 5
★  altima
★  hyundai sonata
★  3
★  passat
★  subaru legacy
★  sonata
★  acura tsx
★  vw jetta
★  chevy malibu
  optima
  vw passat
  mazdaspeed 6
  scion tc
  mondeo
  accord euro
  honda euro
  accord sport
  2013 honda accord
  ford focus
  ford mondeo
  2014 honda accord
  bmw 5
  skoda superb
  pontiac g6
  toyota corolla
  honda accord sport
  honda accord euro
  tsx

Your alternative for mazda 6 is not listed? Suggest!
Speaking about mazda 6, one probably shouldn't forget about dpf.

Other search terms related to mazda 6 and their ratings are:
★★★★★ dpf
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mazda 6
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