Mercedes A-Class Sedan vs Audi A3 Sedan

Compact class static comparison
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For USA and Europe, the main and the only rival of the new Mercedes A-Class Sedan is the Audi A3 Sedan. In China, the longer wheelbase A-Class Sedan compete also with the BMW 1 Serie Sedan. Here are the first considerations and comprison figures between the Audi A3 Sedan and Mercedes A-Class Sedan.

Mercedes A-Class 2018

To avoid any confusion, there is a A-Class L Sedan presented at this year’s Auto China in Beijing in April which was developed exclusively as a long wheelbase version for the Chinese market and is also produced there exclusively.
And there is another A-Class Sedan with a standard wheelbase produced in Aguascalientes, Mexico and Rastatt, Germany for the American and european market.
The new A-Class Sedan will be sold also in the US joining the four door CLA coupe introduced in 2013. CLA Coupe was the first Mercedes compact car sold on the American market and more than 50% of the CLA customers were new at Mercedes.

The Mercedes A-Class Sedan will compete with Audi A3 Sedan on the european and american market.


Both cars have similar proportions, with the same width, while Mercedes is almost 10 cm longer and 3 cm taller. The A-Class Sedan is 4,549/1,796/1,446 mm length/width/height while Audi A3 Sedan has 4,458/1,796/1,416 mm.

Mercedes use intelligent the bigger length offering an almost 10 cm longer wheelbase: 2,729 mm compared with 2,637 mm for Audi A3 Sedan. So we expect a better knee space for the passengers taking place in the rear seats of A-Class Sedan.
Both cars has the same wheelbase like the hatch versions from which they are derivated.

There is almost equal match regarding the volume of the boot: 420 liters for Mercedes and 425 liters for Audi with front wheel drive and 390 liters for the quattro versions.
In Audi A3 Sedan the folding rear seats are split 60:40 as standard and 40:20:40 as option.

The Audi A3 Sedan come with the 12.3 inch TFT for the instrument cluster and with a 7 inch multimedia display for the optional MMI navigation and MMI Navigation Plus.

The new A-Class Sedan is available like in case of the hatch version with a standard 7 inch two displays for the instrument cluster and for the multimedia system. Optionally, the clients can choose the two displays with 7 inch for the instrument cluster and 10,25 inch for the multimedia system or the top MBUX system with two 10,25 displays.


Audi A3 Sedan is offered with 6 versions: three petrol and three diesels.
1.0 TFSI 116 HP
1.5 TFSI 150 HP with the dezactivation of 2 cylinders
2.0 TFSI quattro with 190 HP

1.6 TDI 116 HP
2.0 TDI 150 HP
2.0 TDI Quattro 150 HP
2.0 TDI Quattro 184 HP

For the sales start the Mercedes A-Class sedan is available with
1.33 liter 163 HP  with 7G-DCT dual-clutch gearbox (A 200)
1.5 diesel 116 HP with 7G-DCT dual-clutch gearbox (A 180 d)

A 180  with 1.33 liter/136 HP, A 250 with 2 liter/224 HP, A 200 d with 2.0 liter/150 HP and A 220 d with 2.0 liter 194 HP will follow at a later stage.

In the US, Audi A3 Sedan is offered with a single engine, 2.0 TFSI with 186 and 221 HP combined with three equipment levels – Premium, Premium Plus and Prestige. The prices starts from 31,950 USD for the A3 Sedan Premium with 2.0 TFSI 186 HP.

We expect that the new Mercedes A-Class sedan will be offered also with only one engine in the US as in case of CLA: the new 2 liter, now with 224 HP.
Mercedes does not announce the prices in the US but the CLA starts at 33,100 USD. We expect that the new A-Class sedan will be around 1,500-2,000 USD cheaper.

In Europe, Audi A3 Sedan starts at 26,250 euro for the 1.0 TFSI/115 HP in the Base version while Sport and Design versions costs 1,900 euro more.

The current CLA starts in Europe at 30,583 euro with the 1.6 liter/122 HP. We expect a lower price for the new A 180 Sedan, which will use the new engine made with Renault – 1.33 liter/136 HP.