Performance, power and 0-100 km/h
2025 Audi A7 45 TFSI quattro S line has the quicker recorded 0-100 km/h time at 5.6 seconds, compared with 5.8 seconds for 2025 Audi A6 45 TFSI quattro. Their listed outputs are also identical at 265 hp. Both specifications list 370 Nm of torque. 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
Range and energy-use figures are either not shared by both cars or not directly comparable across these powertrain types.
Dimensions, cargo space and towing
2025 Audi A7 45 TFSI quattro S line provides the larger quoted cargo volume: 535 litres versus 530 litres, a difference of 5 litres. 2025 Audi A7 45 TFSI quattro S line is 30 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 $68,900 for 2025 Audi A7 45 TFSI quattro S line. 2025 Audi A7 45 TFSI quattro S line 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.