Spec Sizes

Porsche 911 vs Audi TT Dimensions & Size Comparison

Comparing 2005 catalog dimensions. Porsche 911 · Audi TT

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

Side view
  • Length174.6 in – 175.6 in
  • Height50.2 in – 51.6 in
  • Wheelbase92.5 in – 92.7 in
  • Ground clearance3.8 in – 4.3 in
  • Curb weight3,042 lb – 3,660 lb
Front / width
  • Width69.7 in – 72.1 in
  • Audi TT width73.1 in

Which is bigger?

  • Length: Audi TT is 16.0 in shorter (175.1 in vs 159.1 in)
  • Width: Porsche 911 is 2.2 in narrower (70.9 in vs 73.1 in)
  • Height: Audi TT is 2.1 in taller (50.9 in vs 53.0 in)
  • Wheelbase: Audi TT has a 2.9 in longer wheelbase (92.6 in vs 95.5 in)
  • Curb weight: Porsche 911 is 39 lb heavier (3,351 lb vs 3,313 lb)

Biggest size differences

  1. Length: Audi TT is 16.0 in shorter (175.1 in vs 159.1 in)
  2. Height: Audi TT is 2.1 in taller (50.9 in vs 53.0 in)
  3. Wheelbase: Audi TT has a 2.9 in longer wheelbase (92.6 in vs 95.5 in)
  4. Width: Porsche 911 is 2.2 in narrower (70.9 in vs 73.1 in)
  5. Curb weight: Porsche 911 is 39 lb heavier (3,351 lb vs 3,313 lb)

Practical verdicts

  • Easier to fit in a short garageAudi TT — Audi TT is shorter by 16.0 in Check garage fit for Porsche 911 · garage fit for Audi TT
  • Narrower for tight parkingPorsche 911 — Porsche 911 is narrower by 2.2 in
  • Smaller exterior footprintAudi TT — Based on length × width (Audi TT)

Dimension comparison

SpecPorsche 911Audi TTDifference
Length175.1 in159.1 in16.0 in
Width70.9 in73.1 in2.2 in
Height50.9 in53.0 in2.1 in
Wheelbase92.6 in95.5 in2.9 in
Ground clearance4.0 in——
Curb weight3,351 lb3,313 lb39 lb

Values use trim midpoints when a model year lists a range (e.g. length 174.6 in – 175.6 in).

Compare by year

Overlapping model years with dimension data.

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