Spec Sizes

Kia Optima vs Mazda Mazda6 Dimensions & Size Comparison

Comparing 2006 catalog dimensions. Kia Optima · Mazda Mazda6

Same scale for both vehicles. Generic silhouette — proportional to measured length, height, width, wheelbase, and clearance.

Side view
  • Length185.8 in – 186.4 in
  • Height55.5 in – 58.3 in
  • Wheelbase106.3 in – 107.1 in
  • Curb weight3,142 lb – 3,301 lb
Front / width
  • Width71.1 in – 71.5 in
  • Mazda Mazda6 width70.1 in

Which is bigger?

  • Length: Kia Optima is 1.2 in shorter (186.1 in vs 187.3 in)
  • Width: Mazda Mazda6 is 1.2 in narrower (71.3 in vs 70.1 in)
  • Height: Mazda Mazda6 is 0.1 in taller (56.9 in vs 57.0 in)
  • Wheelbase: Kia Optima has a 1.4 in longer wheelbase (106.7 in vs 105.3 in)
  • Curb weight: Mazda Mazda6 is 55 lb heavier (3,222 lb vs 3,276 lb)

Biggest size differences

  1. Width: Mazda Mazda6 is 1.2 in narrower (71.3 in vs 70.1 in)
  2. Curb weight: Mazda Mazda6 is 55 lb heavier (3,222 lb vs 3,276 lb)
  3. Wheelbase: Kia Optima has a 1.4 in longer wheelbase (106.7 in vs 105.3 in)
  4. Length: Kia Optima is 1.2 in shorter (186.1 in vs 187.3 in)
  5. Height: Mazda Mazda6 is 0.1 in taller (56.9 in vs 57.0 in)

Practical verdicts

  • Easier to fit in a short garageKia Optima — Kia Optima is shorter by 1.2 in Check garage fit for Kia Optima · garage fit for Mazda Mazda6
  • Narrower for tight parkingMazda Mazda6 — Mazda Mazda6 is narrower by 1.2 in
  • Smaller exterior footprintMazda Mazda6 — Based on length × width (Mazda Mazda6)

Dimension comparison

SpecKia OptimaMazda Mazda6Difference
Length186.1 in187.3 in1.2 in
Width71.3 in70.1 in1.2 in
Height56.9 in57.0 in0.1 in
Wheelbase106.7 in105.3 in1.4 in
Curb weight3,222 lb3,276 lb55 lb

Values use trim midpoints when a model year lists a range (e.g. length 185.8 in – 186.4 in).

Compare by year

Overlapping model years with dimension data.

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