New diesel Audi S4 breaks cover

Saloon and estate models of Audi S4 switch to mild-hybrid diesel power for the first time

The new Audi S4 will be powered by the same 342bhp 3.0-litre V6 diesel engine used by the Audi SQ5 SUV, Audi S5, Audi S6 and Audi S7 Sportback models. Both the saloon and estate (Audi calls it ‘Avant’) versions of the S4 will also feature the mild-hybrid technology seen on the other S-badged models, which helps to increase fuel economy and reduce emissions. A price and on-sale date have yet to be confirmed.

Both models boast similar performance, with the S4 Saloon completing the 0-62mph sprint in 4.8 seconds and the S4 Avant a shade behind with a time of 4.9 seconds. Both cars will hit an electronically limited top speed of 155mph. The engine also features a small electric compressor that automatically assists the turbocharger when required, helping to reduce turbo lag and thereby ensure quicker power delivery.

The best fast estates to buy in 2019

Consisting of a 48V belt-driven alternator starter, an energy recovery system and a 0.5kWh lithium-ion battery pack, Audi’s mild-hybrid system is predominantly used to increase fuel efficiency and reduce emissions. Economy figures for UK-spec models have yet to be confirmed, but Audi has released European fuel economy figures for both variants, with the S4 Saloon achieving a claimed 6.2l/100km (45.6mpg) and CO2 emissions of 161-163g/km, and the S4 Avant achieving 6.3l/100km (44.8mpg), with CO2 emissions of 164-165g/km.

As with other S models, the new S4 features an eight-speed Tiptronic automatic gearbox and quattro four-wheel-drive. The four-wheel-drive system can switch power between the front and rear wheels, depending on the conditions and road surface.

Details of the car’s interior and the tech on board have yet to be officially confirmed, but we would expect the new S4 to feature Audi’s 12.3-inch digital dial display, an 8.3-inch central infotainment screen, and Apple CarPlay and Android Auto.

Want to know more? Why not read our review of the outgoing Audi S4 Saloon and Audi S4 Avant.

Most Popular

Speed awareness course: how much does it cost, how long does it take and how do you do one online?
Police car - open boot
Tips and advice
19 May 2022

Speed awareness course: how much does it cost, how long does it take and how do you do one online?

New car delivery times: how long will you have to wait?
Mazda3s at Bristol port
Car buying
17 May 2022

New car delivery times: how long will you have to wait?

Best new car deals 2022: this week’s top car offers
Fiat 500 deals
Deals
20 May 2022

Best new car deals 2022: this week’s top car offers

Tips & advice

View All
Car dashboard warning lights: the complete guide
Car dashboard symbols and meanings
Tips and advice
23 Mar 2022

Car dashboard warning lights: the complete guide

Electric car charging stations: a complete guide
Electric car charging station
Tips and advice
5 Nov 2021

Electric car charging stations: a complete guide

PCP vs HP – which type of car finance is right for you?
PCP vs HP
Car buying
17 May 2022

PCP vs HP – which type of car finance is right for you?

Average speed cameras: how do they work?
Average speed cameras: how do they work?
Tips and advice
23 Jul 2021

Average speed cameras: how do they work?

Best cars

View All
Top 10 best car interiors 2022
Peugeot 208 hatchback
Best cars
25 Jun 2021

Top 10 best car interiors 2022

Top 10 best electric cars 2022
Ioniq 5
Best cars
25 Apr 2022

Top 10 best electric cars 2022

Top 10 best cheap-to-run cars 2022
Nissan Leaf front
Best cars
3 May 2022

Top 10 best cheap-to-run cars 2022

The UK's top 10 fastest hot hatchbacks 2022
Audi RS 3 driving - front view
Hot hatches
3 Feb 2022

The UK's top 10 fastest hot hatchbacks 2022