New Audi RS3 vs Mercedes-AMG 45: verdict
Both of these hot hatches are bonkers fast. But is Audi's latest RS3 good enough to see off its thrilling Mercedes-AMG rival?...
![New Audi RS3 vs Mercedes-AMG A45 S header](https://media.whatcar.com/fit-in/760x503/wc-image/2022-03/header_2.jpg)
Our verdict
We can absolutely see why you’d choose either one of these hyper-hatches. Both offer similar performance and outright ability, and there isn’t much in it for costs, so it really comes down to whether you prefer a banzai quasi-racing car that continually nags you to drive faster and puts a near-constant smile on your face, or something a little more grown-up and civilised.
If it’s the latter, the RS3’s almost grand tourer disposition makes it hugely appealing. But for us, hot hatches are principally about having fun – and that’s why the A45 edges it. Yes, it’s an awful lot of money, but remember that this is a car that’s almost as fast as a BMW M3 performance saloon and even more entertaining to drive.
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1st - Mercedes-AMG A45
![Mercedes-AMG A45 S rear 3/4 Mercedes-AMG A45 S rear 3/4](https://media.whatcar.com/wc-image/2022-03/a45_rear_3-4.jpg)
For Rawer and more engaging handling; more responsive gearbox; interior looks more special; bigger boot
Against More road noise; A-Class’s poor reliability record
Recommended options None
What Car? rating 5 stars out of 5
Read our full Mercedes A45 review >>
Find Mercedes A45 deals >>
2nd - Audi RS3
![New Audi RS3 rear 3/4 New Audi RS3 rear 3/4](https://media.whatcar.com/wc-image/2022-03/rs3_rear_3-4.jpg)
For Surprisingly playful handling; fabulous-sounding engine; savage acceleration; supple ride with optional adaptive suspension
Against Could do with better seats; limited interior options; gearbox can be hesitant
Recommended options Adaptive suspension (£960)
What Car? rating 4 stars out of 5
Read our full Audi RS3 review >>
Find Audi RS3 deals >>
Specifications: Audi RS3
![New Audi RS3 badge New Audi RS3 badge](https://media.whatcar.com/wc-image/2022-03/rs3_badge.jpg)
Engine 5cyl, 2480cc, turbo, petrol
Peak power 394bhp at 5600-7000rpm
Peak torque 369Ib ft at 2250-5600rpm
Gearbox 7-spd dual-clutch automatic
0-60mph 3.9sec
30-70mph 3.3sec
Top speed 155mph (with optional Driver Assistance pack)
30-0mph 10.9m
70-0mph 58.3m
Noise at 30mph 59.4db
Noise at 70mph 66.0db
Kerb weight 1570kg
Tyre size (std) 265/30 R19 (f), 245/35 R19 (r)
Fuel tank 55 litres
CO2 emissions 206g/km
Specifications: Mercedes A45
![Mercedes-AMG A45 S badge Mercedes-AMG A45 S badge](https://media.whatcar.com/wc-image/2022-03/a45_badge.jpg)
Engine 4cyl, 1991cc, turbo, petrol
Peak power 415bhp at 6750rpm
Peak torque 369Ib ft at 5000-5250rpm
Gearbox 8-spd dual-clutch automatic
0-60mph 4.0sec
30-70mph 3.4sec
Top speed 168mph
30-0mph 10.2m
70-0mph 57.5m
Noise at 30mph 63.7db
Noise at 70mph 67.5db
Kerb weight 1660kg
Tyre size (std) 245/35 R19
Fuel tank 51 litres
CO2 emissions 206g/km
Test weather conditions Wet
Cars pictured
Audi RS3 Sportback TFSI quattro Launch Edition with Kyalami Green metallic paint (£575)
Mercedes-AMG A45 S 4Matic+ Plus with Cosmos Black metallic paint (£595)