Spec Sizes

Porsche 911 vs Audi TT Dimensions & Size Comparison

Comparing 2018 catalog dimensions. Porsche 911 · Audi TT

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

Side view
  • Length177.1 in – 179.6 in
  • Height50.0 in – 51.0 in
  • Wheelbase96.5 in – 96.7 in
  • Ground clearance4.0 in
  • Curb weight3,153 lb – 3,682 lb
Front / width
  • Width71.2 in – 74.0 in
  • Audi TT width72.1 in

Which is bigger?

  • Length: Audi TT is 13.7 in shorter (178.3 in vs 164.7 in)
  • Width: Audi TT is 0.5 in narrower (72.6 in vs 72.1 in)
  • Height: Audi TT is 2.7 in taller (50.5 in vs 53.2 in)
  • Wheelbase: Audi TT has a 2.0 in longer wheelbase (96.6 in vs 98.6 in)
  • Ground clearance: Audi TT has 1.1 in more ground clearance (4.0 in vs 5.1 in)
  • Curb weight: Porsche 911 is 149 lb heavier (3,418 lb vs 3,269 lb)

Biggest size differences

  1. Ground clearance: Audi TT has 1.1 in more ground clearance (4.0 in vs 5.1 in)
  2. Length: Audi TT is 13.7 in shorter (178.3 in vs 164.7 in)
  3. Height: Audi TT is 2.7 in taller (50.5 in vs 53.2 in)
  4. Curb weight: Porsche 911 is 149 lb heavier (3,418 lb vs 3,269 lb)
  5. Wheelbase: Audi TT has a 2.0 in longer wheelbase (96.6 in vs 98.6 in)

Practical verdicts

  • Easier to fit in a short garageAudi TT — Audi TT is shorter by 13.7 in Check garage fit for Porsche 911 · garage fit for Audi TT
  • Narrower for tight parkingAudi TT — Audi TT is narrower by 0.5 in
  • More ground clearanceAudi TT — Audi TT has 1.1 in more clearance
  • Smaller exterior footprintAudi TT — Based on length × width (Audi TT)

Dimension comparison

SpecPorsche 911Audi TTDifference
Length178.3 in164.7 in13.7 in
Width72.6 in72.1 in0.5 in
Height50.5 in53.2 in2.7 in
Wheelbase96.6 in98.6 in2.0 in
Ground clearance4.0 in5.1 in1.1 in
Curb weight3,418 lb3,269 lb149 lb

Values use trim midpoints when a model year lists a range (e.g. length 177.1 in – 179.6 in).

Compare by year

Overlapping model years with dimension data.

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