Spec Sizes

Buick Regal vs Kia Optima Dimensions & Size Comparison

Comparing 2003 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 weight3,461 lb – 3,538 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 210 lb heavier (3,500 lb vs 3,290 lb)

Biggest size differences

  1. Curb weight: Buick Regal is 210 lb heavier (3,500 lb vs 3,290 lb)
  2. Length: Kia Optima is 10.4 in shorter (196.2 in vs 185.8 in)
  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 weight3,500 lb3,290 lb210 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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