Spec Sizes

Kia Optima vs Acura TSX Dimensions & Size Comparison

Comparing 2006 catalog dimensions. Kia Optima · Acura TSX

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
  • Acura TSX width69.4 in

Which is bigger?

  • Length: Acura TSX is 2.7 in shorter (186.1 in vs 183.4 in)
  • Width: Acura TSX is 1.9 in narrower (71.3 in vs 69.4 in)
  • Height: Acura TSX is 0.4 in taller (56.9 in vs 57.3 in)
  • Wheelbase: Kia Optima has a 1.6 in longer wheelbase (106.7 in vs 105.1 in)
  • Curb weight: Acura TSX is 36 lb heavier (3,222 lb vs 3,257 lb)

Biggest size differences

  1. Width: Acura TSX is 1.9 in narrower (71.3 in vs 69.4 in)
  2. Wheelbase: Kia Optima has a 1.6 in longer wheelbase (106.7 in vs 105.1 in)
  3. Length: Acura TSX is 2.7 in shorter (186.1 in vs 183.4 in)
  4. Curb weight: Acura TSX is 36 lb heavier (3,222 lb vs 3,257 lb)
  5. Height: Acura TSX is 0.4 in taller (56.9 in vs 57.3 in)

Practical verdicts

  • Easier to fit in a short garageAcura TSX — Acura TSX is shorter by 2.7 in Check garage fit for Kia Optima · garage fit for Acura TSX
  • Narrower for tight parkingAcura TSX — Acura TSX is narrower by 1.9 in
  • Smaller exterior footprintAcura TSX — Based on length × width (Acura TSX)

Dimension comparison

SpecKia OptimaAcura TSXDifference
Length186.1 in183.4 in2.7 in
Width71.3 in69.4 in1.9 in
Height56.9 in57.3 in0.4 in
Wheelbase106.7 in105.1 in1.6 in
Ground clearance—6.1 in—
Curb weight3,222 lb3,257 lb36 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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