Audi Terminology: Model Numbers and Letters Explained
With such an extensive vehicle lineup, Audi’s model names and terminology can initially be overwhelming and seem like random numbers and letters. However, once deciphered, these names reveal the key elements that make up your Audi. Each part of the name indicates specific features such as the model’s position in the lineup, engine type, and performance characteristics. Understanding this naming system allows you to better appreciate the design and engineering that go into every Audi vehicle. In this blog, we’ll break down the naming system for you, providing a clear and comprehensive guide to help you navigate Audi’s diverse lineup with ease. Understanding the meaning behind the letters and numbers can help you make an informed decision based on your preferences and desired driving experience.
What the Audi letters mean
Audi’s lettering system is relatively straightforward, with the letters representing vehicle type and performance. ‘A’ denotes standard base models typically sedans, hatchbacks, and station wagons. The letter ‘Q’ is used for SUVs, and ‘E’ is designated for electric vehicles. Additionally, ‘S’ signifies sportier versions, and ‘RS’ represents the highest performance variants. This systematic approach helps you easily identify the specific type and performance level of each Audi vehicle.
What the Audi numbers mean
Following the model letter is a number, which typically represents the vehicle’s size and position within the lineup. The smaller the number, the smaller and more compact the vehicle, while larger numbers indicate bigger and often more luxurious models. For example, the Audi Q2 is a compact SUV, whereas the Audi Q8 is a larger, more luxurious SUV.
Q = SUV 5 = mid-size
Audi Power Badge
Another number often included in an Audi model name is the ‘power badge’ which is a number that is followed by combustion type, either TFSI, TDI and now e-tron. The numbering starts at 30 and increases in increments of 5. It represents the vehicles output of their powertrain — in layman terms, the bigger the number, the more powerful the engine. However, the numbers don’t reference the car’s exact power, but the output range within which it sits:
- 30: 109-128 hp (81-96 kW)
- 35: 147-160 hp (110-120 kW)
- 40: 167-201 hp (125-150 kW)
- 45: 226-248 hp (169-185 kW)
- 50: 281-308 hp (210-230 kW)
- 55: 328-368 hp (245-275 kW)
- 60: 429-455 hp (320-340 kW)
- 70: 536+ hp (400+ kW)
Fuel designation
As mentioned above, following the power range number, is the combustion type. So, if it says TFSI that means it’s a petrol, while TDI equates to a diesel engine. If you’re looking for a plug-in hybrid it will be badged as a ‘TFSI e’, while all-electric models are labelled as ‘e-tron’.
- TSFI: Turbo Fuel Stratified Injection (petrol) TSFI e: Hybrid
- TDI: Turbocharged Direct Injection (diesel) TDI e: Hybrid
- e-tron: Fully electric
50 = power output: 281-308 hp (210-230 kW) TDI= Turbocharged Direct Injection (diesel) quattro= All-wheel drive
More Audi terms:
quattro
quattro is Audi’s renowned all-wheel drive technology. Developed through Audi motorsport engineering, quattro is a cornerstone of Audi’s philosophy. Today it brings safety, sportiness, and performance to everyday driving.
Sportback
An Audi Sportback is body style that combines the sleek profile of a sedan with the practicality of a hatchback, featuring a sloping roofline and a rear hatch door for easier access to the cargo area.
GT (Grand Tourer)
A Grand Tourer is designed for high-speed, long-distance driving with a focus on comfort and luxury. GT cars typically offer a spacious interior, a smooth ride, and high-end amenities, making them ideal for extended journeys and daily commuting.
Understanding Audi’s model naming system is key to fully appreciating the intricacies and thoughtfulness behind each vehicle. The letters and numbers are not just random designations but are carefully chosen to convey specific details about the vehicle type, size, performance level, and engine type. With this knowledge, you can navigate Audi’s extensive lineup with confidence, whether you’re looking for a compact and efficient model or a high-performance luxury vehicle. This understanding allows you to make informed decisions tailored to your preferences and driving needs.
Join the Audi community
We’re much more than a car dealership, we’re Audi enthusiasts that happen to be in a privileged position when it comes to hearing the latest news, being the first to receive photos and videos, and hearing our local Audi owners’ stories. We want to share that with you in the form of a two-way conversation. We’re not here to preach, we’re here to listen and engage.
You can be a part of this community by signing up to our emails, and joining our dedicated Facebook Page and Instagram profile. We look forward to seeing you there.






