Spec Sizes

Acura NSX vs Porsche 911 Dimensions & Size Comparison

Comparing 2021 catalog dimensions. Acura NSX · Porsche 911

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

Side view
  • Length176.1 in
  • Height47.8 in
  • Wheelbase103.5 in
  • Ground clearance3.8 in
  • Curb weight3,878 lb
Front / width
  • Width76.3 in
  • Porsche 911 width72.9 in – 74.9 in

Which is bigger?

  • Length: Acura NSX is 2.2 in shorter (176.1 in vs 178.3 in)
  • Width: Porsche 911 is 2.4 in narrower (76.3 in vs 73.9 in)
  • Height: Porsche 911 is 3.4 in taller (47.8 in vs 51.2 in)
  • Wheelbase: Acura NSX has a 7.0 in longer wheelbase (103.5 in vs 96.5 in)
  • Curb weight: Acura NSX is 306 lb heavier (3,878 lb vs 3,572 lb)

Biggest size differences

  1. Curb weight: Acura NSX is 306 lb heavier (3,878 lb vs 3,572 lb)
  2. Wheelbase: Acura NSX has a 7.0 in longer wheelbase (103.5 in vs 96.5 in)
  3. Height: Porsche 911 is 3.4 in taller (47.8 in vs 51.2 in)
  4. Width: Porsche 911 is 2.4 in narrower (76.3 in vs 73.9 in)
  5. Length: Acura NSX is 2.2 in shorter (176.1 in vs 178.3 in)

Practical verdicts

  • Easier to fit in a short garageAcura NSX — Acura NSX is shorter by 2.2 in Check garage fit for Acura NSX · garage fit for Porsche 911
  • Narrower for tight parkingPorsche 911 — Porsche 911 is narrower by 2.4 in
  • Smaller exterior footprintPorsche 911 — Based on length × width (Porsche 911)

Dimension comparison

SpecAcura NSXPorsche 911Difference
Length176.1 in178.3 in2.2 in
Width76.3 in73.9 in2.4 in
Height47.8 in51.2 in3.4 in
Wheelbase103.5 in96.5 in7.0 in
Ground clearance3.8 in——
Curb weight3,878 lb3,572 lb306 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.