Spec Sizes

Audi A3 vs Kia Optima Dimensions & Size Comparison

Comparing 2023 vs 2020 catalog dimensions. Audi A3 · Kia Optima

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

Side view
  • Length176.9 in
  • Height56.2 in
  • Wheelbase103.5 in
  • Curb weight3,329 lb – 3,494 lb
Front / width
  • Width71.5 in
  • Kia Optima width73.2 in

Which is bigger?

  • Length: Audi A3 is 14.2 in shorter (176.9 in vs 191.1 in)
  • Width: Audi A3 is 1.7 in narrower (71.5 in vs 73.2 in)
  • Height: Kia Optima is 1.5 in taller (56.2 in vs 57.7 in)
  • Wheelbase: Kia Optima has a 6.9 in longer wheelbase (103.5 in vs 110.4 in)
  • Curb weight: Audi A3 is 18 lb heavier (3,412 lb vs 3,394 lb)

Biggest size differences

  1. Length: Audi A3 is 14.2 in shorter (176.9 in vs 191.1 in)
  2. Wheelbase: Kia Optima has a 6.9 in longer wheelbase (103.5 in vs 110.4 in)
  3. Height: Kia Optima is 1.5 in taller (56.2 in vs 57.7 in)
  4. Width: Audi A3 is 1.7 in narrower (71.5 in vs 73.2 in)
  5. Curb weight: Audi A3 is 18 lb heavier (3,412 lb vs 3,394 lb)

Practical verdicts

  • Easier to fit in a short garageAudi A3 — Audi A3 is shorter by 14.2 in Check garage fit for Audi A3 · garage fit for Kia Optima
  • Narrower for tight parkingAudi A3 — Audi A3 is narrower by 1.7 in
  • Smaller exterior footprintAudi A3 — Based on length × width (Audi A3)

Dimension comparison

SpecAudi A3Kia OptimaDifference
Length176.9 in191.1 in14.2 in
Width71.5 in73.2 in1.7 in
Height56.2 in57.7 in1.5 in
Wheelbase103.5 in110.4 in6.9 in
Ground clearance—5.3 in—
Curb weight3,412 lb3,394 lb18 lb

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

Compare by year

Overlapping model years with dimension data.

Already own one of these cars?

Jump to maintenance sizes on the vehicle page — tires, wipers, battery, and oil when present in the catalog.