Audi A3 Saloon (2020-present): dimensions and boot space

Find out everything you need to know about the Audi A3 Saloon’s length, width, height, boot size and interior dimensions

Matt Rigby
Oct 27, 2021

It's rare to find a car the size of the Audi A3 that comes in saloon form, with hatchback models a far more common sight. However, the saloon shape delivers a more elegant and upmarket feel, and there are a number of premium car makers who offer saloon versions of their medium-sized family hatchbacks. This includes Audi - with the A3 Saloon - plus BMW with the BMW 2 Series Gran Coupe and Mercedes with the Mercedes A-Class Saloon.

Compared with the larger A4 Saloon, the A3 Saloon is a little shorter and a little narrower, but offers close to the same amount of boot space. The A3 Saloon is also the more affordable option.

The A3 Saloon is almost identical to the A3 Sportback hatchback from the nose all the way back to the rear seats, but its bodywork at the rear is longer, meaning a bigger boot - when the rear seats are in place, at least - and a longer vehicle overall.

The Audi A3 we’re focusing on here was launched in 2020. Its predecessor was offered in three-door hatchback and five-door Sportback forms as well as a saloon, but this car is available as a five-door Sportback or a four-door saloon only.

Compared with the older pre-2020 Audi A3 Saloon, the new one is barely any different in size, meaning very little change in the available space for front or rear passengers or their luggage - but that’s no bad thing, as the older A3 was a perfectly accommodating car for its size.

You can find examples of this version of the Audi A3 Saloon from £384 per month with PCP finance. Read on for more details about its dimensions and boot space.


Audi A3 Saloon dimensions

The Audi A3 Saloon is 4.5 metres long, making it a couple of centimetres shorter than the Mercedes A-Class Saloon and BMW 2 Series Gran Coupe. Like those two rivals, there’s reasonable space in both front and rear seats, but if it’s more cabin space you’re after for your upmarket saloon, you’ll need to step up to larger models such as the Audi A4 Saloon or BMW 3 Series.

Looking at width, both the Mercedes A-Class and the BMW 2 Series Gran Coupe are a couple of centimetres narrower, but this is only at kerb height. The figures are reversed when you take the door mirrors into account as the design of the A3 puts the mirrors further inboard than on the other two cars, making it more slender than both when you take this into account.

Audi A3 Saloon4,495mm1,816mm1,425mm

Audi A3 Saloon boot space

If you’re after ultimate luggage space, a saloon body style won’t be ideal for you - a hatchback, estate or an SUV will offer more flexibility and, generally, more luggage space - at least when you compare total boot volume when you fold the rear seats down.

Nevertheless, the Audi A3 Saloon provides 425 litres of luggage space, which is actually more than the 380 litres available in the Sportback hatch. In the case of the hatchback Audi A3, however, the load space is measured to the luggage cover, which goes up to the height of the top of the rear seats, so there’s extra volume above that point in the hatchback that can be used and which isn't available in the saloon.

Boot space doesn’t improve significantly if you move up a size to the Audi A4 Saloon, either - you get 460 litres of space in one of those. Meanwhile, the A3 Saloon’s closest rivals muster almost identical figures: the BMW 2 Series Gran Coupe has 430 litres of space and the Mercedes A-Class Saloon 420 litres.

Boot spaceBoot space
Audi A3 Saloon425 litres


Audi A3 Saloon towing capacity

A small saloon probably isn't your first thought when you’re thinking about towing a heavy trailer or caravan, but the A3 Saloon can haul between 1,500kg and 1,800kg for a braked trailer - depending on the model - if a tow bar is fitted.

Given that it is not recommended to tow anything that weighs more than your car’s kerb weight, however, in practical terms you’ll be limited by this figure, since the kerbweight of an Audi A3 is anything between 1,220kg and 1,415kg - again, depending on the model.

If you really want an effective tow car, something larger, heavier and more stable such as an Audi A6 saloon, or Q5 or Q7 SUV would make more sense and be able to cope with heavier trailers or caravans.

Audi A3 Saloon weight

The kerbweight of a car demonstrates how heavy it’s likely to be in real world conditions. This means the figure includes all the fluids in the engine, a tank of fuel and an extra 75kg to represent the weight of a driver.

The weight of any range of cars will vary depending upon the specification of any particular model. Technical features such as four-wheel drive and automatic gearboxes add weight, for example, as do larger alloy wheels. In general, the heavier a car is, the less nimble it will feel and the more fuel it will use.

Audi A3 Saloon1,220kg - 1,415kg



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