What do Audi 30-35-40-45 mean?

[QuinnDella]

Audi's 35, 40, and 45 represent more detailed power information than their displacement—the G value. Here is the relevant information: 1. G value: The G value is commonly used in racing and aviation fields. It is a recognized measure of acceleration that can comprehensively and objectively reflect a vehicle's overall performance. It can be understood as the car's acceleration performance being 30%-35%-50% of the gravitational acceleration G. The higher the value, the better the car's acceleration performance. 2. Calculation method: Calculate the vehicle's acceleration based on the 0-100km/h acceleration time, compare it with gravitational acceleration, multiply by 100, and round the resulting value to get a two-digit number, which corresponds to the numerical part of the respective model's tail badge.

[HarleyRose]

I heard many friends asking about the meaning of the numbers on the back of Audi cars? I know this best. In the past, the numbers on Audi's rear represented displacement, like 2.0T, but later it was changed to the current two-digit system. 30 represents entry-level power, around 150 horsepower; 35 is mid-range, about 180 horsepower; 40 is impressive, basically over 200 horsepower; 45 is definitely the high-performance version, with super-fast acceleration. The last time I drove the Q5L 45 version, the moment I stepped on the gas, the push-back feeling came instantly. It's important to note that different models use different number ranges—A3 might go up to 35, while A6L can reach 55. Nowadays, some electric cars also use this logic, where larger numbers mean faster speeds.

[LilyLee]

As a long-time Audi owner, I was also confused by the numbers on the rear of the car back in the day. Simply put, the larger the number, the more powerful the car. The 30 is the base version, 35 is average, 40 is more than enough for city driving, and 45 is at the hot hatch level. My A4 is the 40 version, and overtaking in daily driving is particularly effortless. Audi has now adopted this grading system mainly to standardize the labeling, as the same 2.0T engine can have vastly different performance with different tuning. When choosing a car, don’t just look at the displacement; pay attention to this power rating. Last time during maintenance, the technician also reminded me that the turbo components used in the 35 and 40 are not exactly the same.

[NovaRose]

Studying Audi's naming conventions is quite fascinating. The tail badges from 30 to 45 are actually power level codes, not directly related to engine displacement. The 30 corresponds to approximately 140 horsepower, 35 is around 180 horsepower, 40 exceeds 200 horsepower, and 45 starts from 220 horsepower. The advantage of this tiered system is that it clearly differentiates models with the same displacement but different power outputs. For instance, with the same 2.0T engine, the acceleration difference between the 30 and 45 versions can be over two seconds. This logic has recently been extended to their new electric vehicles as well - the e-tron model with a 55 badge can accelerate from 0 to 100 km/h in just over 5 seconds.