Performance, power and 0-100 km/h
2025 Audi A6 45 TFSI quattro has the quicker recorded 0-100 km/h time at 5.8 seconds, compared with 5.9 seconds for 2025 BMW 5 Series 530i xDrive. 2025 Audi A6 45 TFSI quattro has the higher listed output at 265 hp; 2025 BMW 5 Series 530i xDrive is rated at 258 hp, a difference of 7 hp. The torque figures follow 2025 BMW 5 Series 530i xDrive at 400 Nm and 2025 Audi A6 45 TFSI quattro at 370 Nm. These figures describe straight-line potential only; they do not establish braking performance, ride quality, steering response or durability under repeated hard use.
Range, battery, charging and efficiency
Their recorded consumption is identical at 7.8 L/100km. Test cycle, temperature, wheel size and charging conditions can materially affect these results, so only figures measured on the same basis should be treated as directly comparable.
Dimensions, cargo space and towing
2025 Audi A6 45 TFSI quattro provides the larger quoted cargo volume: 530 litres versus 520 litres, a difference of 10 litres. 2025 BMW 5 Series 530i xDrive is 121 mm longer overall. Exterior size is not a benefit by itself: a longer body may create useful room, but cargo shape, rear-seat space and ease of parking still require a physical inspection.
Price and overall assessment
2025 Audi A6 45 TFSI quattro has the lower listed starting price at $57,500, compared with $58,395 for 2025 BMW 5 Series 530i xDrive. 2025 Audi A6 45 TFSI quattro leads in more of the shared headline fields, but that is not a universal verdict: a buyer should weight price, performance, range and utility rather than simply count category wins. The assessment is based on the specifications shown here; it is not presented as a two-car road test.