Skip advert
Advertisement

Goodbye 40 TDI: Audi drops the numbered engine names that confused us all

Audi is set to remove the powertrain naming strategy from the back of its cars

Audi 40 TDI badge

Audi is set to ditch its current powertrain naming strategy, which will see an end to a system which uses numbers that are vaguely associated with power outputs. 

First introduced in 2017, the number strategy will be dispensed with altogether starting with the all new Q6 e-tron SUV. The phase-in process for the number removal started quietly with the launch of the Q8 e-tron, but while the brand’s flagship electric SUV doesn't display numbers on its boot lid, the designations are still noted in pricing and press materials. 

Advertisement - Article continues below

Florian Hauser, Audi’s Head of Sales & Product Marketing for Battery Electric Vehicles, explained to Auto Express that a big focus for the brand going forward is to make things easy for its customers. “When we talk about simplicity we don’t just talk about the options and the configuration process [in contrast to older Audi models, the Q6 has just a handful of option packs to choose from], we are really thinking of getting the leanest engine programme for the Q6 which still refers to our customer demands.” 

With fewer powertrains to choose from, Audi will be able to simplify the naming structure of its range based on the number of driven wheels and a choice of one or two power outputs, with a regular four-wheel drive version of the Q6 simply known as ‘quattro’ going forward. 

“And if it’s a performance model with quattro, then it’s ‘SQ6.’” says Hauser. “If you think about what’s coming next, when we talk about rear-wheel drive it’s just a Q6. For smaller and bigger batteries we could think about a suffix behind the ‘6’ - for example ‘Performance.’ And so we don’t need the numbers anymore, so we won’t show them.” 

While it’s confirmed that subsequent EVs going forward will ditch the numbering strategy, the system is also set to be removed from the bootlids of its internal combustion cars too – though it’s still in discussion internally as to whether it will also disappear from the configuration pages.

Audi’s numbering structure was designed to separate powertrains according to their power outputs, but the inconsistent groupings – and the seemingly arbitrary choices of the numbers themselves – made the system confusing for many people. For example, the ‘30’ powertrain represented cars producing between 109bhp and 128bhp, but ‘45’ ran from 226bhp to 248bhp.

Are you pleased Audi's is dropping its confusing naming strategy? Let us know your thoughts in the comments section...

Skip advert
Advertisement
Chief reviewer

Alex joined Auto Express as staff writer in early 2018, helping out with news, drives, features, and the occasional sports report. His current role of Chief reviewer sees him head up our road test team, which gives readers the full lowdown on our comparison tests.

Find a car with the experts

Skip advert
Advertisement

Recommended

Audi introduces new digital interfaces on A5, A6 e-tron, Q5 and Q6 e-tron
2026 Audi - line-up

Audi introduces new digital interfaces on A5, A6 e-tron, Q5 and Q6 e-tron

The first steps are being taken to answer criticisms of Audi’s latest user interfaces
News
26 Nov 2025
New AUDI E SUV concept previews second model from China-only brand
AUDI E SUV concept - front

New AUDI E SUV concept previews second model from China-only brand

The AUDI E SUV features some impressive stats - but it’s not coming here
News
25 Nov 2025
Supersized Audi Q9 SUV lumbers closer to production
Audi Q9 - front 3/4

Supersized Audi Q9 SUV lumbers closer to production

Audi’s overdue answer to the BMW X7 and Mercedes GLS is coming with all the bells and whistles, and a V8 engine
News
10 Oct 2025
9 coolest SUVs coming soon: new models aiming to take the 4x4 market by storm
Coolest SUVs coming soon - September 2025 header image

9 coolest SUVs coming soon: new models aiming to take the 4x4 market by storm

Thought SUVs couldn't be cool? Here are some forthcoming contenders that should have the grunt – and the looks
Best cars & vans
24 Sep 2025

Most Popular

New Nissan Juke to get wild design as it goes all-electric
Nissan Juke - front (exclusive image)

New Nissan Juke to get wild design as it goes all-electric

The new Nissan Juke is set to arrive in the UK in 2026, and our exclusive images preview how it could look
News
24 Nov 2025
Jaecoo and Omoda announce ‘tax rebate’ to counter pay-per-mile tax
Omoda E5 and Jaecoo E5

Jaecoo and Omoda announce ‘tax rebate’ to counter pay-per-mile tax

Not a fan of the Government’s 3p per mile road tax proposal for electric cars? Omoda and Jaecoo are already offering discounts they’re promoting as ‘t…
News
26 Nov 2025
New Dacia C-Neo preps for its big family car fight in 2026
Dacia C-Neo - front cornering

New Dacia C-Neo preps for its big family car fight in 2026

Romanian firm looks ready to take on a new sector with all-new petrol-powered family car
News
24 Nov 2025