Spec Sizes

Audi A3 vs Kia Optima Dimensions & Size Comparison

Comparing 2018 catalog dimensions. Audi A3 · Kia Optima

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

Side view
  • Length174.1 in – 175.5 in
  • Height55.5 in – 55.7 in
  • Wheelbase102.2 in – 103.8 in
  • Ground clearance5.5 in – 6.0 in
  • Curb weight3,197 lb – 3,627 lb
Front / width
  • Width70.7 in
  • Kia Optima width73.2 in

Which is bigger?

  • Length: Audi A3 is 16.3 in shorter (174.8 in vs 191.1 in)
  • Width: Audi A3 is 2.5 in narrower (70.7 in vs 73.2 in)
  • Height: Kia Optima is 2.1 in taller (55.6 in vs 57.7 in)
  • Wheelbase: Kia Optima has a 7.4 in longer wheelbase (103.0 in vs 110.4 in)
  • Ground clearance: Audi A3 has 0.5 in more ground clearance (5.8 in vs 5.3 in)
  • Curb weight: Audi A3 is 56 lb heavier (3,412 lb vs 3,357 lb)

Biggest size differences

  1. Length: Audi A3 is 16.3 in shorter (174.8 in vs 191.1 in)
  2. Ground clearance: Audi A3 has 0.5 in more ground clearance (5.8 in vs 5.3 in)
  3. Wheelbase: Kia Optima has a 7.4 in longer wheelbase (103.0 in vs 110.4 in)
  4. Height: Kia Optima is 2.1 in taller (55.6 in vs 57.7 in)
  5. Width: Audi A3 is 2.5 in narrower (70.7 in vs 73.2 in)

Practical verdicts

  • Easier to fit in a short garageAudi A3 — Audi A3 is shorter by 16.3 in Check garage fit for Audi A3 · garage fit for Kia Optima
  • Narrower for tight parkingAudi A3 — Audi A3 is narrower by 2.5 in
  • More ground clearanceAudi A3 — Audi A3 has 0.5 in more clearance
  • Smaller exterior footprintAudi A3 — Based on length × width (Audi A3)

Dimension comparison

SpecAudi A3Kia OptimaDifference
Length174.8 in191.1 in16.3 in
Width70.7 in73.2 in2.5 in
Height55.6 in57.7 in2.1 in
Wheelbase103.0 in110.4 in7.4 in
Ground clearance5.8 in5.3 in0.5 in
Curb weight3,412 lb3,357 lb56 lb

Values use trim midpoints when a model year lists a range (e.g. length 174.1 in – 175.5 in).

Compare by year

Overlapping model years with dimension data.

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