Audi A3 Sportback 2021–2024 car dimensions: 4389 mm long, 1851 mm wide and 1436 mm high. Unladen weight is 1,645 kg. Boot space with the seats up is 282 litres.
The cabin has a 10.1-inch MMI Navigation plus touchscreen with smartphone interface for wireless Apple CarPlay and Android Auto as standard. Dual-zone climate control and cruise control are standard. Front and rear parking sensors with park assist come standard. Automatic emergency braking is standard via Audi pre sense front, and lane departure warning with emergency assist is standard. Blind spot warning and reversing camera are available on higher trims or via packs.
Boot space is 282 litres with seats up and expands to 1104 litres with the split-folding rear seats down.
The car is not suitable for towing equipment. Payload is 430 kg based on unladen weight with driver of 1645 kg and gross weight limit of 2075 kg. RS sport suspension is standard.
Fine Nappa leather front sport seats with shaped bolsters, 4-way electric lumbar and heating come standard for strong support on twisty roads. Manual adjustment is base. higher grades or packs add full electric multi-way seats with memory. Three-zone climate control is standard. A panoramic glass roof is available and standard on top trim. The cabin feels sporty and well-built with RS detailing, virtual cockpit and ambient lighting.
Petrol 2.5 TFSI. WLTP combined around 30-31 mpg
Service interval 19,000 miles or 2 years
Shares A3 five-star Euro NCAP rating
Standard kit: multiple airbags, pre sense front, lane departure with emergency assist, fatigue warning, ESC, tyre pressure monitor
The 2.5-litre five-cylinder petrol returns WLTP combined figures of 31.4 mpg on base RS 3 Sportback, dropping slightly on higher specs. A 55-litre tank is fitted. Real-world use varies with driving style and often falls lower when using the performance.
Servicing follows Audi's schedule of up to 19,000 miles or two years, with fixed or flexible options depending on use. Oil changes and inspections alternate. brake fluid every two years. Warranty is three years or 60,000 miles as standard, with extensions available.
Safety draws from the A3 platform's five-star Euro NCAP result. Standard equipment covers driver and passenger airbags plus side and head airbags with interaction airbag, pre sense front, collision avoidance, lane departure warning with emergency assist, camera traffic sign recognition, distraction and fatigue warning, ESC with ABS/ASR/EDL, tyre pressure loss indicator and seat belt monitoring.
Keeping the car involves regular services at Audi centres or specialists, with plans offered to spread costs. High-performance brakes and tyres wear faster under hard use. The five-cylinder has a solid reputation when oil is changed on time.
Length 4389 mm, Width 1851 mm, Height 1436 mm, Wheelbase 2631 mm (A3 Sportback 2021–2024)
Sources: manufacturer data, Audi UK technical data sheet “Audi RS 3 Sportback TFSI ”, United Kingdom, October 2021, Audi, “Facts and figures”, RS 3 Sportback and RS 3 Sedan, 7 October 2021: steel brake discs 375 x, Audi Preisliste RS 3 Sportback / RS 3 Limousine, Germany, July 2022: standard front airbags with passenger deactivation, front side airbags.