Spec Sizes

Buick Regal vs Kia Optima Dimensions & Size Comparison

Comparing 2004 catalog dimensions. Buick Regal · Kia Optima

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

Side view
  • Length196.2 in
  • Height56.6 in
  • Wheelbase109.0 in
  • Curb weight3,418 lb – 3,524 lb
Front / width
  • Width72.7 in
  • Kia Optima width71.5 in

Which is bigger?

  • Length: Kia Optima is 10.4 in shorter (196.2 in vs 185.8 in)
  • Width: Kia Optima is 1.2 in narrower (72.7 in vs 71.5 in)
  • Height: Buick Regal is 1.1 in taller (56.6 in vs 55.5 in)
  • Wheelbase: Buick Regal has a 2.7 in longer wheelbase (109.0 in vs 106.3 in)
  • Curb weight: Buick Regal is 181 lb heavier (3,471 lb vs 3,290 lb)

Biggest size differences

  1. Length: Kia Optima is 10.4 in shorter (196.2 in vs 185.8 in)
  2. Curb weight: Buick Regal is 181 lb heavier (3,471 lb vs 3,290 lb)
  3. Wheelbase: Buick Regal has a 2.7 in longer wheelbase (109.0 in vs 106.3 in)
  4. Height: Buick Regal is 1.1 in taller (56.6 in vs 55.5 in)
  5. Width: Kia Optima is 1.2 in narrower (72.7 in vs 71.5 in)

Practical verdicts

  • Easier to fit in a short garageKia Optima — Kia Optima is shorter by 10.4 in Check garage fit for Buick Regal · garage fit for Kia Optima
  • Narrower for tight parkingKia Optima — Kia Optima is narrower by 1.2 in
  • Smaller exterior footprintKia Optima — Based on length × width (Kia Optima)

Dimension comparison

SpecBuick RegalKia OptimaDifference
Length196.2 in185.8 in10.4 in
Width72.7 in71.5 in1.2 in
Height56.6 in55.5 in1.1 in
Wheelbase109.0 in106.3 in2.7 in
Curb weight3,471 lb3,290 lb181 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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