The 40 is the "b-cycle" engine, a variant of the EA888 Gen3 engine that implements a modified Miller cycle, and is built all around being efficient. Audi made a whole document talking about it. Google search "Audi SSP 645". The EA888 Gen3 b-cycle is the "40", the EA888 Gen3 evo is the "45". Keep in mind that MY21 introduced the Gen4 versions 369. lb-ft. 0-60 mph in. 5.2. sec. Always obey all speed and traffic laws. Technical specifications. Experience the 2024 Audi A7 luxury Sportback, featuring a coupe-like design, all-wheel drive performance, and intuitive interior technology. View detailed specs, features and options for the 2023 Audi A6 Premium Plus 45 TFSI quattro at U.S. News & World Report. 2023 Audi A6 45 TFSI. Drivetrain: AWD; Engine: 2.0-liter turbocharged I-4; Horsepower/Torque: 248 hp/273 lb-ft; Under the hood is a monstrous engine not available in any other A6 variant: a Get information about engine specs, fuel consumption, dimensions of any car your are interested in. Audi A6 (C4) 2.5 TDI 140 (1994) Audi Q5 (FY 2021) 45 TFSI Check out the full specs of the 2023 Audi A6 Premium Plus 45 TFSI quattro, from performance and fuel economy to colors and materials Engine and Transmission. Engine. 2.0L Turbo Inline-4 Gas Check out the full specs of the 2022 Audi A6 Premium 45 TFSI quattro, from performance and fuel economy to colors and materials. Engine and Transmission. Engine. 2.0L Turbo Inline-4 Gas The 2021 Audi A6 (C8) 45 TFSI quattro has a Inline 4, Petrol engine with 1984 cm3 / 121.1 cu-in capacity. How many horsepower (hp) does a 2021 Audi A6 (C8) 45 TFSI quattro have? The 2021 Audi A6 (C8) 45 TFSI quattro has 245 PS / 242 bhp / 180 kW. EXm9kt.