Mercedes-AMG A45 S vs Audi RS3 Sportback: Quick Comparison

David Taylor

5 Sep 2022

Mercedes-AMG A45 S vs Audi RS3 Sportback: Quick Comparison

The hyper hatchback market has taken an interesting turn as the Mercedes-AMG A45 S is joined by the brand-new 2022 Audi RS3 Sportback. In this quick comparison, we look at performance, options, practicality and of course, price. 

Since its launch locally back in August 2020, the Mercedes-AMG A45 S has had the segment to itself. Nothing in the hatchback segment could come close to matching its 310 kW output or hefty price tag. In September 2022, Audi South Africa announced specifications and pricing for its brand-new Audi RS3 Sportback and Sedan. With all details available, its clear to see Ingolstadt’s offering is positioned to give the Mercedes-AMG A45 S a run for its money. 

In this comparison piece between Mercedes-AMG A45 S vs Audi RS3 Sportback, we crunch the engine outputs and claimed performance, compare the dimensions and practicality aspects, and measure value by seeing how much you’ll have to pay for optional extras.

Engine, Transmissions & Performance 

Mercedes-AMG A45 SAudi RS3 Sportback
Engine capacity2.0-litre petrol2.5-litre petrol
Number of cylindersFourFive
Gearbox8-speed DCT7-speed DCT
Power310 kW at 6 750 rpm294 kW at 5 600 rpm – 7 000 rpm 
Torque500 Nm at 5 000 – 5 250 rpm 500 Nm at 2 250 – 5 600 rpm 
Weight1 635 kg1 570 kg
Claimed 0-100 kph3.9 seconds3.8 seconds
Claimed top speed250 kph (optional 270 kph)250 kph (optional 280 kph)
Claimed fuel economy
and tank capacity
8.4 L/100 km, 51 litres9 L/100 km, 55 litres

It’s remarkable to see what AMG has achieved with that 2.0-litre 4-cylinder engine in terms of performance and outputs, while offering a 2-year/unlimited kilometre warranty. Remember it’s easy to make big power, but to do so reliably? Impressive. 

Audi’s RS3 Sportback may be a bit down on power in comparison to the AMG, but it is fractionally lighter and delivers maximum torque earlier in the rev range, which gives it a slight advantage when it comes to straight-line sprints from standstill. We look forward to putting the two vehicles in a head-to-head drag race to settle the debate between Mercedes-AMG A45 S vs Audi RS3 Sportback.

Practicality     

A45RS3
Length 4 445 mm 4 389 mm 
Width 1 992 mm1 984 mm 
Height 1 445 mm 1 436 mm 
Wheelbase2 729 mm 2 631 mm 
Rear Seat Configuration 60:40 split40:20:40 split
Load Capacity 370 – 1 210 L282 – 1 104 L

Features 

See the full specification comparison using the Cars.co.za Compare Tool

Mercedes-AMG A45 SAudi RS3 Sportback
List price (September 2022)R1 300 943R1 215 000
Infotainment system / Instrument clusterMBUX all-digital instrument displayAudi virtual cockpit
Android Auto and Apple CarPlay, Bluetooth, voice control, USBYes to allYes to all
Reverse-view cameraYesYes
Cruise Control YesYes
Air conditioningClimate Control Climate Control 
Park distance controlYesYes
Upholstery Artico man-made leather / microfibreDinamica microfiber/leatherette
Electric windows and mirrorsYes, all Yes, all
Seat adjustment Manual adjustment (opt electronic)Manual adjustment (opt electronic)
Steering wheel adjustment Tilt and reachTilt and reach

Mercedes-AMG A45 S vs Audi RS3 Sportback Options Available

Here’s a quick look at the options available. For the most accurate and updated pricing, its best to consult your respective dealer.

Mercedes-AMG A45 SAudi RS3 Sportback
AMG Night Package II R 9 700
AMG Night package R14 000
AMG Aerodynamics package R27 400
Black Appearance package Plus R 7 000
Aluminum package R15 500
Paint price ranges: R5 200 – R33 800Paint price range: R14 500 – R37 500
Wheels: 4 to choose from, 2 are no-cost options
19-inch AMG R6 500
19-inch AMG Cross-spoke forged R32 700
Wheels: 3 to choose from
19-inch Matte Black R11 000
19-inch Black with graphic R12 700
Panoramic sliding sunroof R16 400Panoramic glass sunroof R17 000
Leather package R22 000
AMG Performance Seat package High-End R82 500:
-Memory Seat Package
-Heated front seats
-AMG Performance seats

Heated front seats R5 700
Memory Seat Package R12 500
Power front seats with memory feature
for driver seat and exterior mirrors  R19 300

Seat heaters in front R5 500

Fine Nappa leather with honeycomb stitching
and embossed “RS” R18 200
Heads-up display: standardHeads-up display: R15 000
Burmester® surround sound R11 000Bang & Olufsen premium sound system
with 3D sound standard
AMG Ride Control Suspension R24 000Adaptive chassis control with Audi drive select  R13 000
MBUX Navigation Plus R11 800MMI Navigation plus with MMI touch R39 300
Wireless charging system R3 600Audi phone box R7 500

Other noteworthy options for the Audi RS3 Sportback include Sports tires P Zero Trofeo R by Pirelli, 265/30|245/35 R19 for R13 000, ceramic brakes for R122 000, carbon roof spoiler R23 300,  top speed increased to 280 kph R27 500.

Other noteworthy options for the Mercedes-AMG A45 S include tech packages: Premium Package (R21 000) 

  • Advanced-Plus Package
  • MBUX Navigation Plus
  • THERMOTRONIC automatic climate control
  • KEYLESS-GO
  • Hard-disc navigation
  • AMG illuminated door sills with “AMG” lettering and with exchangeable cover

Premium-Plus Package (R76 000)

  • Advanced-Plus Package + Premium Package
  • Memory Seat Package
  • MULTIBEAM LED
  • 4-way lumbar support
  • Parking Package with 360-degree camera
  • Front left, electric memory
  • Head-up display
  • MBUX Interior Assistant

Summary

The Mercedes-AMG A45 S and Audi RS3 Sportback have never been as closely matched both in terms of performance, price and specification. Based on the above, which one would take for a weekend drive?

David Taylor

David Taylor

Having contributed to multiple motoring titles as well helping run the public relations machine of the Johannesburg International Motor Show, Dave has experience in both sides of the motoring industry. He's based in the Western Cape and is responsible for the performance testing, photography & weekly YouTube news for Cars.co.za.

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