Spec Sizes

Buick Regal vs Kia Optima Dimensions & Size Comparison

Comparing 2012 catalog dimensions. Buick Regal · Kia Optima

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

Side view
  • Length190.2 in
  • Height58.0 in – 58.4 in
  • Wheelbase107.8 in
  • Curb weight3,600 lb – 3,710 lb
Front / width
  • Width73.1 in
  • Kia Optima width72.1 in

Which is bigger?

  • Length: Buick Regal is 0.5 in shorter (190.2 in vs 190.7 in)
  • Width: Kia Optima is 1.0 in narrower (73.1 in vs 72.1 in)
  • Height: Buick Regal is 0.9 in taller (58.2 in vs 57.3 in)
  • Wheelbase: Kia Optima has a 2.2 in longer wheelbase (107.8 in vs 110.0 in)
  • Curb weight: Buick Regal is 360 lb heavier (3,655 lb vs 3,296 lb)

Biggest size differences

  1. Curb weight: Buick Regal is 360 lb heavier (3,655 lb vs 3,296 lb)
  2. Wheelbase: Kia Optima has a 2.2 in longer wheelbase (107.8 in vs 110.0 in)
  3. Height: Buick Regal is 0.9 in taller (58.2 in vs 57.3 in)
  4. Width: Kia Optima is 1.0 in narrower (73.1 in vs 72.1 in)
  5. Length: Buick Regal is 0.5 in shorter (190.2 in vs 190.7 in)

Practical verdicts

  • Easier to fit in a short garageBuick Regal — Buick Regal is shorter by 0.5 in Check garage fit for Buick Regal · garage fit for Kia Optima
  • Narrower for tight parkingKia Optima — Kia Optima is narrower by 1.0 in
  • Smaller exterior footprintKia Optima — Based on length × width (Kia Optima)

Dimension comparison

SpecBuick RegalKia OptimaDifference
Length190.2 in190.7 in0.5 in
Width73.1 in72.1 in1.0 in
Height58.2 in57.3 in0.9 in
Wheelbase107.8 in110.0 in2.2 in
Curb weight3,655 lb3,296 lb360 lb

Values use trim midpoints when a model year lists a range.

Compare by year

Overlapping model years with dimension data.

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