Spec Sizes

Porsche 911 vs BMW M2 Dimensions & Size Comparison

Comparing 2021 catalog dimensions. Porsche 911 · BMW M2

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

Side view
  • Length177.9 in – 178.6 in
  • Height51.1 in – 51.3 in
  • Wheelbase96.5 in
  • Curb weight3,354 lb – 3,790 lb
Front / width
  • Width72.9 in – 74.9 in
  • BMW M2 width73.0 in

Which is bigger?

  • Length: BMW M2 is 2.1 in shorter (178.3 in vs 176.2 in)
  • Width: BMW M2 is 0.9 in narrower (73.9 in vs 73.0 in)
  • Height: BMW M2 is 4.3 in taller (51.2 in vs 55.5 in)
  • Wheelbase: BMW M2 has a 9.5 in longer wheelbase (96.5 in vs 106.0 in)
  • Curb weight: BMW M2 is 28 lb heavier (3,572 lb vs 3,600 lb)

Biggest size differences

  1. Wheelbase: BMW M2 has a 9.5 in longer wheelbase (96.5 in vs 106.0 in)
  2. Height: BMW M2 is 4.3 in taller (51.2 in vs 55.5 in)
  3. Width: BMW M2 is 0.9 in narrower (73.9 in vs 73.0 in)
  4. Length: BMW M2 is 2.1 in shorter (178.3 in vs 176.2 in)
  5. Curb weight: BMW M2 is 28 lb heavier (3,572 lb vs 3,600 lb)

Practical verdicts

  • Easier to fit in a short garageBMW M2 — BMW M2 is shorter by 2.1 in Check garage fit for Porsche 911 · garage fit for BMW M2
  • Narrower for tight parkingBMW M2 — BMW M2 is narrower by 0.9 in
  • Smaller exterior footprintBMW M2 — Based on length × width (BMW M2)

Dimension comparison

SpecPorsche 911BMW M2Difference
Length178.3 in176.2 in2.1 in
Width73.9 in73.0 in0.9 in
Height51.2 in55.5 in4.3 in
Wheelbase96.5 in106.0 in9.5 in
Curb weight3,572 lb3,600 lb28 lb

Values use trim midpoints when a model year lists a range (e.g. length 177.9 in – 178.6 in).

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.