What does the number on the rear of an Audi A6 mean?
3 Answers
The number on the rear of an Audi A6 represents the ratio between the vehicle's acceleration and gravitational acceleration. Simply put, the larger the number, the stronger the vehicle's power and the better its performance. Here are the relevant details: 1. The number on the rear of an Audi is generally calculated using the following formula: 100 km/h divided by the 0-100 km/h acceleration time, then divided by 9.8 (gravitational acceleration) equals the final number. It's important to note that the last digit is always rounded to end with 0 or 5. 2. Before calculation, unit conversion is required: 100 kilometers = 100,000 meters (m), and 1 hour = 3,600 seconds (s). 3. For example: For an engine with an 8.2-second 0-100 km/h acceleration time, the calculation would be 100,000/3,600/8.2/9.8 = 34%, which is approximately 35%. Therefore, this vehicle would be named 35TFSI. 4. All numbers on the rear of Audi models follow this meaning. Common examples include: 30TFSI, 35TFSI, 40TFSI, 45TFSI, 50TFSI, and 55TFSI.
I previously specialized in studying Audi's naming conventions and found that the numbers on the A6's rear represent power levels rather than displacement. In the past, they directly labeled engine sizes like 1.8T or 2.0T. Now, they've switched to numbers like 35/40/45/55, which are actually classifications derived from a combination of engine power and acceleration performance. For example, my friend's 45 TFSI accelerates two seconds faster than the 40 version, but the 40 is sufficient for daily driving. Audi introduced this grading system mainly to help owners quickly distinguish performance levels without worrying about displacement. If you see a TFSI badge on the rear, it indicates a gasoline version with turbocharging, delivering particularly crisp and responsive acceleration.
I've been driving an Audi A6 for five years, and the number '40' in the '40 TFSI' badge at the rear represents the power level. When I first bought the car, I thought '40' meant a 4.0-liter engine displacement, but later I learned from the dealership that it was a misunderstanding. The salesperson told me that the larger the number, the stronger the power. My 40 version accelerates from 0 to 100 km/h in 7.9 seconds, while the 55 version is more than two seconds faster. In actual driving, it's powerful enough for highway overtaking and feels nimble when starting in the city. This numbering system is much more practical than the older models that directly indicated engine displacement. The newer models with 48V mild hybrid systems have even smoother acceleration. By the way, during winter warm-up, the dashboard displays the hybrid power status, which is like a little Easter egg from Audi.
