What Size Is the 2015 Audi A3?

The 2015 Audi A3 is a compact premium sedan (and in some markets, a Sportback hatchback) with dimensions of roughly 4.45 m long, 1.79 m wide, and 1.42 m high for the sedan, placing it firmly in the compact car class while still offering usable interior space for four adults.

Overview: Positioning the 2015 Audi A3 in the Compact Segment

The 2015 Audi A3 sits in the premium compact category, competing with cars like the Mercedes-Benz CLA and BMW 2 Series (of the same era). Its footprint is closer to a traditional compact sedan than a midsize model, which makes it relatively easy to park and maneuver in urban environments while maintaining a more upscale feel than mainstream compacts.

Exterior Dimensions of the 2015 Audi A3 Sedan

For most buyers in North America and many global markets, the 2015 Audi A3 is best known in its four-door sedan form. These official manufacturer dimensions give a clear picture of how much space the car occupies on the road.

Main Exterior Measurements (2015 Audi A3 Sedan)

The following list details the key external size figures for the 2015 Audi A3 sedan; values can vary slightly by market, engine, and wheel/tire specification, but these numbers are representative for most models.

• Overall length: approximately 4,456 mm (175.4 in)
• Overall width (excluding mirrors): approximately 1,796 mm (70.7 in)
• Overall width (including mirrors): approximately 1,966–1,969 mm (about 77.4–77.5 in), depending on market data
• Overall height: approximately 1,416 mm (55.7 in)
• Wheelbase: approximately 2,637 mm (103.8 in)
• Front track: about 1,548–1,555 mm (61.0–61.2 in), depending on wheel/tire package
• Rear track: about 1,520–1,526 mm (59.8–60.1 in), depending on wheel/tire package
• Curb weight range: roughly 1,320–1,470 kg (2,910–3,240 lb), depending on engine, transmission, and drivetrain (FWD vs quattro AWD)

Taken together, these figures confirm that the 2015 Audi A3 sedan is compact but not tiny, with a footprint that allows reasonable cabin space while remaining easy to operate in dense traffic and tight parking situations.

Interior Space and Practicality

While many shoppers ask about the “size” of a car, what often matters in daily use is the interior volume and how practical the cabin feels for passengers and luggage. The 2015 Audi A3 offers a premium interior that is sized for small families, couples, or commuters who occasionally carry rear passengers.

Passenger Space

The interior dimensions of the 2015 Audi A3 sedan give a more precise sense of how occupants will feel once seated inside.

• Seating capacity: 5 occupants (best suited for 4 adults)
• Front headroom: about 1,001 mm (39.4 in)
• Rear headroom: about 924 mm (36.4 in)
• Front legroom: approximately 1,046 mm (41.2 in)
• Rear legroom: approximately 892 mm (35.1 in)
• Front shoulder room: about 1,392 mm (54.8 in)
• Rear shoulder room: about 1,341 mm (52.8 in)

These measurements show that the A3 is comfortable in the front seats and adequate but not generous in the rear, which is typical for a premium compact sedan: adults can sit in back, but taller passengers may find legroom and headroom tight on longer trips.

Cargo Space

Cargo capacity is another key measure of how “big” a car feels in everyday use, especially for drivers who carry luggage, shopping, or sports gear regularly.

• Trunk volume (sedan): approximately 425 liters (15.0 cu ft) with the rear seats up
• Rear seatbacks: split-folding (typically 60/40), allowing longer items to be carried
• Load opening: traditional sedan trunk lid, not as tall as a hatchback but reasonably wide

With a trunk volume that rivals some midsize sedans, the 2015 A3 can handle everyday hauling needs and weekend trips comfortably, though it doesn’t offer the vertical loading flexibility of a hatchback or SUV.

Dimensions of the 2015 Audi A3 Sportback (Hatchback)

In many European and some other markets, the 2015 Audi A3 was also widely sold as a five-door Sportback (hatchback). While the user’s question is general, it’s useful to distinguish between the sedan and Sportback, as their dimensions differ slightly and affect practicality.

2015 A3 Sportback Exterior Size

The Sportback shares much of its architecture with the sedan but is shaped differently at the rear, which affects length and cargo usability.

• Overall length: approximately 4,310–4,316 mm (169.7–170.0 in), depending on version
• Overall width (excluding mirrors): approximately 1,785–1,796 mm (70.3–70.7 in)
• Overall height: approximately 1,425–1,429 mm (56.1–56.3 in)
• Wheelbase: about 2,636 mm (103.8 in), essentially the same as the sedan
• Curb weight range: broadly similar to the sedan, around 1,250–1,480 kg (2,755–3,263 lb), depending on engine, drivetrain, and equipment

The Sportback’s slightly shorter length but similar wheelbase indicates that space is redistributed rather than lost; the hatchback design sacrifices some rear overhang while often improving cargo flexibility.

Sportback Interior and Cargo Space

Inside, the Sportback closely mirrors the sedan for passenger space but differs significantly in how cargo can be carried and accessed.

• Passenger space: broadly comparable with the sedan for headroom and legroom, with minor variations depending on roofline and seat configuration
• Cargo volume (rear seats up): typically around 380–390 liters (13.4–13.8 cu ft), depending on drivetrain and whether there is a spare wheel
• Cargo volume (rear seats folded): up to about 1,220 liters (43.1 cu ft) of maximum load space, measured to the roof
• Access: large hatch opening, making it easier to load bulky items than the sedan trunk

In practice, this means that even though the quoted trunk figure with the seats up may look similar or slightly smaller than the sedan’s, the Sportback’s folding rear seats and tall opening make it far more versatile for transporting larger or awkwardly shaped objects.

How the 2015 Audi A3 Compares to Other Cars

Knowing exact millimeter and inch figures is useful, but the size of the 2015 Audi A3 is often best understood by comparing it with popular alternatives from its era and class.

Comparison Within Audi’s Own Lineup

Within Audi’s 2015 range, the A3 sits below the A4 in size, and it is distinctly larger than an A1 (where sold). This hierarchy helps explain why many buyers see the A3 as a step up from mainstream compacts without moving into full midsize territory.

• 2015 Audi A3 vs Audi A4 (B8.5-generation):
  

  • A3 sedan length ~4,456 mm vs A4 length ~4,701 mm — A4 is about 245 mm (9.6 in) longer
  • A4 offers noticeably more rear legroom and a slightly roomier cabin

• 2015 Audi A3 vs Audi A1 (where available):
  

  • A1 is shorter and narrower, placing the A3 as a more family-ready and highway-comfortable option

This internal comparison underscores that the 2015 A3 is designed as a compact but premium step into the Audi brand, rather than a full family sedan like the A4.

Comparison With Premium Compact Rivals

Among its direct competitors, the 2015 A3’s dimensions are typical for the class, neither especially large nor especially small.

• Mercedes-Benz CLA (first generation): longer overall than the A3 sedan, but with a lower, more coupe-like roofline, which can reduce rear headroom
• BMW 1 Series (hatchback, Europe) / 2 Series (coupe): similar overall lengths and widths, with variations depending on body style; passenger room and trunk capacity broadly comparable
• Mainstream compacts (e.g., VW Golf, Ford Focus of the era): similar length and width, but the A3 often feels more refined inside while offering dimensions that are familiar to drivers coming from non-premium compacts

Against these rivals, the 2015 A3’s size makes it competitive and familiar, offering premium branding without requiring drivers to adapt to a much larger vehicle footprint.

Urban Use, Parking, and Everyday Maneuverability

The implications of the 2015 Audi A3’s size become particularly clear when considering how the car behaves in city traffic, narrow streets, and small parking spaces.

City-Focused Practicality

The following characteristics illustrate how the 2015 A3’s compact dimensions translate into real-world convenience, especially in urban settings.

• Compact footprint: length under 4.5 meters for the sedan helps with parallel parking and fitting into shorter spaces
• Reasonable width: under 1.8 meters (excluding mirrors) aids maneuvering through narrow lanes and older city streets
• Turning circle: around 10.9–11.1 meters (35.8–36.4 ft), depending on model, giving it nimble handling in tight turns and parking garages
• Visibility and stance: relatively low height and car-like proportions, which some drivers find more comfortable than taller crossovers for highway stability

In everyday use, this combination means that the 2015 Audi A3 is easy to live with in dense environments, yet it still feels stable enough at higher speeds to serve as a capable commuter or long-distance car.

Key Takeaways on the 2015 Audi A3’s Size

When considering the size of the 2015 Audi A3, it is helpful to look at both the objective dimensions and the subjective, everyday experience of living with the car.

Core Size Facts at a Glance

The following points consolidate the main information about the 2015 Audi A3’s dimensions and what they mean for buyers.

• Class: premium compact car
• Sedan exterior size: about 4,456 mm long, 1,796 mm wide (without mirrors), and 1,416 mm high, with a 2,637 mm wheelbase
• Sportback exterior size: slightly shorter (around 4,310–4,316 mm long) but with similar width and wheelbase
• Interior space: comfortable for two adults in front, adequate but tighter for two in the rear, with limited comfort for a fifth occupant
• Cargo capacity: sedan trunk around 425 liters; Sportback offers similar seats-up volume but much greater flexibility and up to about 1,220 liters with seats folded
• Typical usage: ideal for singles, couples, or small families who want premium quality in a compact, city-friendly package

Altogether, these details show that the 2015 Audi A3 is sized to balance city maneuverability with sufficient interior and cargo space for everyday needs, without encroaching on the territory of larger midsize sedans or SUVs.

Summary

The 2015 Audi A3 is a premium compact car whose size is defined by an overall length of roughly 4.45 m for the sedan and about 4.31–4.32 m for the Sportback, with a width just under 1.8 m and a wheelbase around 2.64 m. These dimensions place it squarely in the compact segment, making it easy to park and maneuver while still offering a comfortable front cabin and usable rear seating. The sedan’s 425-liter trunk and the Sportback’s more flexible hatch layout provide solid practicality for a car of this size. For drivers seeking an upscale feel without the bulk of a midsize sedan, the 2015 Audi A3’s dimensions strike a deliberate and well-judged balance.

Is the Audi A3 2015 a good car?

The 2015 Audi A3 is our top pick among entry-level luxury sport sedans. It delivers a fantastic balance of sporty performance and a genuinely comfortable ride, even in Dynamic mode.

What size is an Audi A3?

The Audi A3 dimensions are approximately 177 inches (14 ft 9 in) long, 71.5 inches (5 ft 11 in) wide, and 56.2 inches (4 ft 8 in) high, with a wheelbase of about 103.7 inches (8 ft 8 in). These figures are for the current model years, but can vary slightly depending on the specific year and trim. 
This video provides a visual overview of the 2024 Audi A3’s dimensions and cargo space: 58sAudi El PasoYouTube · Nov 30, 2023
Exterior dimensions

• Length: 177.3 inches (4492 mm)
• Width: 71.5 inches (1816 mm)
• Height: 56.2 inches (1425 mm)
• Wheelbase: 103.7 inches (2636 mm)
• Ground Clearance: 4.4 inches (112 mm) 

Interior and performance dimensions

• Turning Circle: 36.4 feet (11.10 m)
• Front Track: 60.7 inches (1542 mm)
• Rear Track: 59.6 inches (1514 mm)
• Cargo Capacity: Approximately 11 cubic feet for the sedan 

These dimensions are for recent model years, so it’s always a good idea to check the specifications for the specific model year you are interested in.

Are Audi A3 and A4 the same?

The A3 is smaller than the A4, so there’s generally less space for passengers and cargo. The A3 is great for two upfront and children in the rear, teenagers or two smaller adults. You get a 425-litre boot, which is bigger than the A3 Sportback hatchback.

How big is a 2015 Audi A3?

Dimensions

Length	175.4 in.
Overall width with mirrors	77.2 in.
Height	55.7 in.