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

Iconic cars of the 1990s: the decade’s greatest high performance heroes together at last
90s heritage icons - header image

Iconic cars of the 1990s: the decade’s greatest high performance heroes together at last

The nineties saw some big changes culturally, but also plenty of star cars. We brought together some of the decade’s icons
Car group tests
20 Dec 2025
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

Most Popular

New Ford Fiesta shaping up for its gigantic 2028 comeback
Ford Fiesta render Avarvarii

New Ford Fiesta shaping up for its gigantic 2028 comeback

Ford’s passenger-car business will get a new lease of life thanks to Renault’s Ampere platform, paving the way for two new small EVs
News
21 Dec 2025
Car Deal of the Day: The posh Peugeot 3008 for £210 a month is a perfect Christmas gift
Peugeot E-3008 - front cornering

Car Deal of the Day: The posh Peugeot 3008 for £210 a month is a perfect Christmas gift

This is probably the cheapest the Peugeot 3008 has been all year. No wonder it’s our Deal of the Day for December 19.
News
19 Dec 2025
Groundbreaking new Jaguar GT: huge price, power and plans for the 4-door EV revealed
Jaguar E GT Avarvarii

Groundbreaking new Jaguar GT: huge price, power and plans for the 4-door EV revealed

Jaguar boss Rawdon Glover gives Auto Express the very latest on 2026’s most keenly anticipated car: the Jaguar four-door GT
News
19 Dec 2025