Rally legend returns: Audi Quattro gets V8 from RS4 and 740 hp — a car that will surprise even supercar fans

This is not about a factory-fresh Audi model, but an exclusive restomod created by an independent British manufacturer. However, in terms of engineering solutions, the project is quite capable of attracting the attention of even the most demanding fans of automotive classics.

Audi Quattro IV: classic design and modern technology

The exterior of the Audacious IV references the legendary Audi Quattro, which became famous thanks to its successes in world rallying and effectively became one of the symbols of the Group B era.

The developers retained the recognizable proportions of the original model: the angular body, massive flared wheel arches, the distinctive front end and the classic silhouette of a sports coupe.

At the same time, the technical basis of the car is completely different. The donor vehicle is the B7-generation Audi RS4, produced from 2006 to 2008.

From it, the new model receives:

• the platform and structural body framework;
• the suspension and braking system;
• the all-wheel-drive transmission;
• the electronic control systems;
• the six-speed manual gearbox.

This approach makes it possible to combine classic exterior styling with a more modern engineering architecture.

V8 from the Audi RS4: up to 750 horsepower under the hood

The most interesting part of the project is the engine.

Instead of the traditional five-cylinder turbocharged engine of the original Quattro, the engineers decided to use the naturally aspirated 4.2-liter V8 FSI from the Audi RS4 B7.

Moreover, the developers do not intend to limit themselves to the standard configuration.

Several engine preparation options are envisaged. The entry-level version with a mechanical supercharger is expected to develop around 600 hp, while the more serious Stage 2 modification with reinforced internal components, an improved cooling system and an upgraded fuel system will make it possible to obtain approximately 740–750 hp.

But there is another interesting feature as well.

For the Audacious IV, engine versions are envisaged with the possibility of raising the maximum rpm to an incredible 10,000 rpm. This will require serious modernization of the internal components of the powertrain.

Thus, buyers will be able to choose between a powerful supercharged V8 and a naturally aspirated variant more oriented toward high rpm.

All-wheel drive and a manual instead of modern automatics

Despite the impressive power, the developers decided to preserve one of the project's main features — the analog character of the driving experience.

The Audacious IV will receive the six-speed manual gearbox from the RS4 and the quattro all-wheel-drive system with a Torsen differential.

This is a fundamental point: the creators are not seeking to turn the car into yet another digital supercar with numerous electronic aids.

Their task is to preserve the driver's direct connection with the machine, while at the same time offering the characteristics of a modern high-performance car.

According to preliminary data, the top speed of the most powerful version should reach 200 mph (about 322 km/h), and acceleration to 60 mph (96 km/h) is claimed at 3.4 seconds.

For now, these figures should be regarded as the project's claimed characteristics rather than the results of independent testing.

Carbon-fiber body and limited production run

Another feature of the Audacious IV is the ability to choose body materials.

Buyers will be offered a metal body made of steel and aluminum or a lightweight variant with extensive use of carbon fiber.

According to preliminary calculations, the weight of the car with a metal body will be around 1400–1450 kg, while the carbon-fiber modification will be able to approach the 1200 kg mark.

For comparison: the weight of the Audi RS4 B7 in standard form is approximately 1650 kg.

The interior will also receive individual customization. The developers will retain some elements from the RS4, including the distinctive sports seats, but will completely rework the dashboard, controls and cabin trim.

Each example will be assembled according to the customer's wishes.

In total, the company plans to produce no more than 50 cars. The starting price is stated at 350,000 pounds sterling, excluding taxes, the donor car and additional expenses.

The first deliveries to customers are expected in the second half of 2027.

Why does the revival of the Audi Quattro generate such interest?

The Audacious IV project reflects one of the most notable trends in the modern automotive market — the return of classic models in restomod form.

Buyers are increasingly turning their attention to cars that combine the recognizable design of the past with modern technical underpinnings.

However, Audacious Automotive has gone further than ordinary modernization.

The company is effectively creating an alternative version of the legendary Quattro that could never have been purchased at official Audi dealerships.

It is especially interesting that, instead of retaining the original five-cylinder engine, the creators chose the naturally aspirated V8 from the RS4, adding the option of installing a mechanical supercharger and significantly raising the rpm.

For fans of the original Quattro, such a decision may prove controversial. After all, it was precisely the distinctive sound of the five-cylinder turbocharged engine that was one of the car's calling cards.

But from an engineering standpoint, the combination of a V8, a manual gearbox and Torsen all-wheel drive looks very intriguing.

Bottom line: The Audacious IV is not merely an attempt to bring back automotive classics. It is a demonstration of what a legendary rally car could look like if its historical design were combined with modern engineering capabilities.

And the main question remains open: what will true Audi fans choose — the original five-cylinder engine or the 750-hp V8?