Audi vs BMW vs Mercedes: Which Luxury Brand Wins in 2025?

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Audi vs BMW vs Mercedes, which is better?

 Photo by Tim Bernhard on Unsplash

Introduction

Luxury car fans in the UK know the debate well: Audi vs BMW vs Mercedes. Who's really leading? With 2024 data now in, we can see who’s ahead in sales volume, EV momentum, and access to auto parts. 

If you’re looking to buy new, browsing used cars, or hunting down car parts, here’s where each brand stands right now. Let’s check out all of this in this article.

Full-Year 2024 Sales Data: How They Ranked

Here’s the full picture for 2024 new car registrations in the UK:

  • BMW: 125,265 units – up 12.1% year-on-year (6.4% market share)

  • Audi: 122,431 units – down 10.9% year-on-year (6.3% share)

  • Mercedes-Benz: 102,757 units – up 17.1% year-on-year (rising over several positions)

BMW overtook Audi in 2024, taking second place behind Volkswagen, quite the turnaround. Meanwhile, Mercedes had a strong year, moving up the ranks.

In context, the wider UK car market grew modestly, total registrations rose 2.6% to nearly 1.95 million vehicles. All-electric vehicles made strong gains too, reaching 19.6% of total sales.

Brand-by-Brand Breakdown (UK, 2024)

Brand

Units Sold

YoY Change

Market Share

BMW

~125,000

↑12%

6.40%

Audi

~122,000

↓11%

6.30%

Mercedes

~103,000

↑17%

~5.3%

  • BMW emerged stronger, with excellent growth and second-place sales overall.

  • Audi slipped behind, showing a year-on-year drop.

  • Mercedes made solid gains, climbing into the upper ranks thanks to more demand and smart refreshes.

EV Momentum & Market Direction

Electric vehicles are steadily reshaping the UK car market. In 2024, 19.6% of all new car registrations were battery-electric vehicles (BEVs). That’s a solid increase from 2023, though it still fell just short of the 22% target set by the government’s Zero Emission Vehicle (ZEV) mandate. Carmakers that miss the target risk penalties, so the race to boost EV sales is intensifying.

  • BMW: Leading the charge. Popular models like the i4 and iX continue to sell well, and newer entries such as the i5 and i7 are giving buyers more choice. BMW’s EV share keeps climbing, and it’s expected that around one in four BMWs sold in the UK by 2025 will be fully electric.

  • Mercedes: The EQ lineup (EQA, EQB, EQE, EQS) is wide, but UK demand has been mixed. Mercedes even saw EV sales slip in some markets in 2024, so it’s putting more focus back into hybrids to meet customer needs.

  • Audi: Struggling to keep pace. The e-tron and Q4 e-tron have a presence in the UK, but overall volumes have dipped. Audi is betting on fresh EV launches from 2025 onwards to rebuild momentum.

The Bigger Picture

While BEVs grow, many UK buyers are still choosing plug-in hybrids and mild hybrids as a compromise between cost, charging convenience and efficiency. This benefits Mercedes and Audi in the short term, but longer term, BMW looks best positioned to meet rising EV demand.

What This Means for Buyers & Parts Seekers

  • BMW: Highest sales volume means parts, both new and second-hand BMW parts are plentiful and usually easier to source.

  • Mercedes: Rising popularity eases parts supply, but availability is still behind BMW.

  • Audi: With a sales drop, older models may be harder to find parts for, and costs could be higher.

If you care about easy service, reliable access to used auto parts, or car parts for DIY jobs, BMW edges ahead in terms of parts availability and market volume.

Conclusion: Who Wins in 2025 UK?

When comparing Audi vs BMW vs Mercedes in the UK with 2024 data:

  • BMW is on top with strong sales growth and excellent BMW parts availability.

  • Mercedes is making a comeback, with solid growth and rising stock.

  • Audi lags behind both in sales and parts supply.

For UK buyers who value parts access, resale value, and active model support, BMW remains the safest bet. Mercedes is on the rise, while Audi still trails.

Frequently Asked Questions (FAQ)

1. Which brand sold the most cars in the UK in 2024 — Audi, BMW, or Mercedes?

BMW led the way with about 125,000 units sold in 2024, overtaking Audi and staying ahead of Mercedes. Audi slipped to third, while Mercedes showed strong growth.

2. Is BMW really the best choice in the UK for 2025?

Based on 2024 data, BMW is the safest bet. It offers strong sales growth, a wide EV lineup, and excellent availability of both new and used BMW parts across the UK.

3. How are Mercedes doing compared to BMW and Audi?

Mercedes had a strong 2024, growing sales by 17% and moving up the rankings. Its EQ electric models are popular in some segments and demand for used Mercedes parts is rising.

4. Why did Audi fall behind in 2024?

Audi’s sales dropped by around 11% in the UK. Its EV lineup struggled to keep pace with BMW and Mercedes, though fresh launches expected from 2025 could help rebuild momentum.

5. Which brand is strongest in electric vehicles (EVs)?

BMW is currently leading in EV adoption in the UK. Models like the i4, iX, i5, and i7 have strong demand. Mercedes offers a broad EQ range, while Audi is still catching up.

6. What does this mean for buyers looking for parts in the UK?

  • BMW: Best availability, especially for used BMW parts thanks to high sales volumes.

  • Mercedes: Parts are becoming easier to find but still less common than BMW.

  • Audi: Some models may be harder to source parts for, and prices could be higher.

7. Is it cheaper to maintain a BMW, Audi, or Mercedes in the UK?

BMW tends to have better access to affordable used and new parts, making it more cost-effective for many owners. Mercedes is improving, while Audi parts can sometimes be pricier due to lower availability.

8. Will EV adoption affect parts availability?

Yes. As more EVs hit the road, demand for EV-specific parts (like batteries and charging components) will rise. BMW is best positioned with its strong EV lineup, followed by Mercedes, while Audi is still preparing for wider EV expansion.

9. Where can I buy BMW, Audi, or Mercedes parts in the UK?

Parts can be sourced from dealerships, online retailers, car breakers and specialist suppliers. For used BMW parts, UK breakers like MT Auto Parts are a reliable option.

Disclaimer

The information in this article is provided for general guidance only. While every effort has been made to ensure accuracy, figures such as sales data, market share and EV adoption rates are based on the latest available reports from industry sources (e.g. SMMT, MarkLines, Reuters). These numbers may change as updated statistics are released.

This article does not constitute financial, investment, or purchase advice. Readers should always check with official sources, dealerships, or industry reports before making decisions about buying, selling, or sourcing car parts and vehicles.
Location: United Kingdom

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