What do Audi 45 and 55 represent?
2 Answers
Audi 45 and 55 represent the horsepower of the engine. The larger the number, the greater the horsepower of the engine, and the better the performance. Generally, 45 represents the 2.0T high-power engine, while 55 represents the 3.0T engine. It can also be understood that the larger the number on the tail badge, the stronger the power. Taking the 2020 Audi A4L 45 TFSI quattro Premium Elegance model as an example: it is a medium-sized 4-door 5-seater sedan with a length, width, and height of 4851mm, 1847mm, and 1411mm respectively, a wheelbase of 2908mm, and equipped with a 7-speed dual-clutch transmission. The 2020 Audi A4L 45 TFSI quattro Premium Elegance model has a top speed of 240 km/h, a fuel tank capacity of 58 liters, a front-engine four-wheel-drive system, and uses 245/35R19 tire specifications.
I heard from a friend who runs a repair shop that the numbers like 45 and 55 on Audi's rear badges don't actually have much to do with engine displacement, but mainly indicate the power level of the engine. The higher the number, the more powerful the car is. For example, the commonly seen A4L 45 TFSI has around 245 horsepower, which provides quick acceleration for daily driving without being too fuel-consuming. If you opt for something like the A6L 55 TFSI, with approximately 340 horsepower, the acceleration is even more forceful and often comes with all-wheel drive. This grading system is quite clever—you can tell the performance level at a glance from the badge without needing to remember complicated displacement numbers. Different numbers also affect maintenance costs; higher-powered cars require more expensive engine oil, so it's something to consider in the long run.
