The 2021 Audi RS5 is a high-performance compact luxury car offered as a Sportback (4-door hatch-style sedan) and Coupe, positioned above the S5 with significantly more power and track-ready hardware. It’s ideal for drivers who want everyday usability, premium cabin quality, and serious acceleration without moving up to a larger RS model. For 2021, the RS5 continues the B9.5 (facelift) generation introduced for 2020, bringing sharp styling, updated tech, and the proven twin-turbo V6 with standard quattro all-wheel drive. In the market, it competes with cars like the BMW M4 and Mercedes-AMG C63, leaning toward all-weather traction and refinement.

- 2.9L twin-turbocharged V6 (EA839) with 444 hp and 443 lb-ft of torque, paired to an 8-speed Tiptronic automatic and standard quattro AWD for confident year-round grip. - Strong straight-line performance, with 0–60 mph commonly reported in the low-4-second range, plus launch control and a sport-tuned drivetrain calibrated for quick shifts. - RS-specific chassis tuning with performance brakes, aggressive suspension setup, and available Dynamic Ride Control (DRC) for reduced body roll and sharper handling response. - Sportback practicality (if equipped): a wide rear hatch opening and usable cargo space make it more versatile than many performance coupes while keeping a sleek profile. - Modern driver tech and comfort: Virtual Cockpit digital gauges, available driver assistance features, and a premium interior with supportive RS sport seats and high-end materials.

Shoppers frequently search “2021 Audi RS5 reliability” and “2021 Audi RS5 problems” because ownership is generally solid for a high-performance Audi, but there are a few 2021 Audi RS5 common issues worth knowing: - Thermostat/water pump and coolant leaks: Like many modern turbo Audi/VW engines, some owners report coolant smell, low coolant warnings, or visible seepage from the cooling system components. These issues can appear anywhere from 20,000–60,000 miles depending on use and climate. Catching slow leaks early helps avoid overheating and secondary damage. - Carbon buildup on intake valves (direct injection): Over time, deposits can form because fuel doesn’t wash the intake valves. Symptoms may include rough idle, reduced throttle response, or misfires, often showing up around 40,000–80,000 miles depending on driving habits. It’s not guaranteed, but it’s common enough to plan for inspection and cleaning if performance drops. - Suspension clunks or uneven ride (especially with DRC): Some owners note noises over bumps or dampers that don’t feel consistent. This can show up in the 20,000–50,000 mile range. Not every RS5 has DRC, but if it does, ensure the system is leak-free and properly functioning because repairs can be expensive. - Premature brake wear and brake noise: The RS5 is heavy and fast, and aggressive driving accelerates pad/rotor wear. Squeal and dust are common, and rotors can wear sooner than expected, sometimes by 20,000–35,000 miles depending on driving style. This is more “performance-car normal” than a defect, but it impacts running costs.