Spec Sizes

Audi TT vs Porsche 911 Dimensions & Size Comparison

Comparing 2021 catalog dimensions. Audi TT · Porsche 911

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

Side view
  • Length165.0 in
  • Height53.3 in – 53.4 in
  • Wheelbase98.6 in
  • Curb weight3,197 lb – 3,395 lb
Front / width
  • Width72.1 in
  • Porsche 911 width72.9 in – 74.9 in

Which is bigger?

  • Length: Audi TT is 13.3 in shorter (165.0 in vs 178.3 in)
  • Width: Audi TT is 1.8 in narrower (72.1 in vs 73.9 in)
  • Height: Audi TT is 2.1 in taller (53.3 in vs 51.2 in)
  • Wheelbase: Audi TT has a 2.1 in longer wheelbase (98.6 in vs 96.5 in)
  • Curb weight: Porsche 911 is 276 lb heavier (3,296 lb vs 3,572 lb)

Biggest size differences

  1. Curb weight: Porsche 911 is 276 lb heavier (3,296 lb vs 3,572 lb)
  2. Length: Audi TT is 13.3 in shorter (165.0 in vs 178.3 in)
  3. Height: Audi TT is 2.1 in taller (53.3 in vs 51.2 in)
  4. Width: Audi TT is 1.8 in narrower (72.1 in vs 73.9 in)
  5. Wheelbase: Audi TT has a 2.1 in longer wheelbase (98.6 in vs 96.5 in)

Practical verdicts

  • Easier to fit in a short garageAudi TT — Audi TT is shorter by 13.3 in Check garage fit for Audi TT · garage fit for Porsche 911
  • Narrower for tight parkingAudi TT — Audi TT is narrower by 1.8 in
  • Smaller exterior footprintAudi TT — Based on length × width (Audi TT)

Dimension comparison

SpecAudi TTPorsche 911Difference
Length165.0 in178.3 in13.3 in
Width72.1 in73.9 in1.8 in
Height53.3 in51.2 in2.1 in
Wheelbase98.6 in96.5 in2.1 in
Curb weight3,296 lb3,572 lb276 lb

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

Compare by year

Overlapping model years with dimension data.

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