When it comes to premium executive cars, the Audi A5, BMW 3 Series, and Mercedes C-Class are titans of the segment. But with the redesigned Audi A5 (replacing the outgoing A4) entering the fray, how does it stack up against its rivals? We dive into design, performance, practicality, and driving dynamics to crown the winner.
Design: Sleek Lines vs Sporty Elegance
Audi A5
The new A5 debuts a fresh platform and bold styling. Highlights include a striking light bar at the rear, real exhaust pipes (no fake tips!), and flush door handles with a satisfyingly solid thunk. The hatchback design adds practicality, while configurable LED lighting offers eight unique styles.
BMW 3 Series
BMW leans into sportiness with sharp lines and athletic proportions. While its design isn’t revolutionary, the 3 Series remains a timeless choice for drivers prioritizing dynamic aesthetics.
Mercedes C-Class
Mercedes opts for understated elegance, with a cleaner profile and refined details. However, the presenter notes it lacks the “wow” factor compared to its rivals.
Verdict: The BMW narrowly wins for its sporty appeal, though the Audi’s tech-forward design and Mercedes’ sophistication keep the race tight.
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Performance: Diesel Punch vs Hybrid Muscle
Each model was tested for acceleration, braking, and driving feel:
| Model | Engine | 0-60 MPH (Tested) | Braking (60-0 MPH) |
|---|---|---|---|
| Audi A5 | 2.0L Diesel (204 HP) | 7.6 seconds | 35 meters |
| BMW 330i | 2.0L Turbo Petrol (184 HP) | 7.2 seconds | 36 meters |
| Mercedes C 300e | 2.0L PHEV (313 HP) | 5.6 seconds | 35 meters |
- Audi A5: The diesel engine delivers punchy acceleration, and regenerative braking feels grabby but effective.
- BMW 330i: Rear-wheel drive and a slick 8-speed gearbox make it the driver’s choice, though firmer suspension trades comfort for agility.
- Mercedes C 300e: The plug-in hybrid rockets to 60 mph in 5.6 seconds (beating its claim) but suffers from added weight and spongy brakes.
Verdict: The Mercedes dominates straight-line speed, but the BMW balances sportiness and daily usability best.
Interior: Tech vs Tradition
Audi A5
The cabin features three screens (including an optional passenger display), a glass roof with electrochromic shading, and premium materials. However, cost-cutting is evident in hard plastics and fussy touch-sensitive controls.
BMW 3 Series
Simpler and more driver-focused, the BMW offers physical buttons and intuitive iDrive. Quality feels a notch above the Audi, though its infotainment can overwhelm with menus.
Mercedes C-Class
A standout with its “floating” iPad-style screen, digital dash, and ambient lighting. However, some trim pieces feel cheap, and the infotainment interrupts with unrequested voice prompts.
Verdict: Mercedes’ luxurious design wins, but BMW’s ergonomics and Audi’s tech tie for second.
Practicality: Hatchback Flexibility vs Hybrid Compromises
- Boot Space:
- Audi A5: 445 liters (hatchback design, fold-flat seats).
- BMW 3 Series: 480 liters (narrower opening).
- Mercedes C 300e: 315 liters (reduced by PHEV batteries).
Audi’s hatchback shines for easy loading, while the BMW offers more space. The Mercedes’ plug-in hybrid setup sacrifices utility.
Rear Seats:
- Audi and BMW provide ample headroom, but the Mercedes’ seat shape feels less comfortable.
- Audi’s sloping roofline slightly compromises headroom vs the BMW.
Verdict: Audi takes practicality with its versatile hatch, though BMW is roomier.
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Driving Experience: Comfort vs Thrills
Audi A5
Relaxed and refined, the A5 excels on long journeys. The diesel engine is quiet, and adaptive dampers smooth out bumps. However, numb steering lacks engagement.
BMW 3 Series
Firmer suspension and rear-wheel drive deliver sharper handling. It’s the most fun on twisty roads but trades some comfort for sportiness.
Mercedes C-Class
Plush ride quality (thanks to rear air suspension) suits cruising, but its weight and hybrid drivetrain dull responsiveness.
Verdict: BMW for excitement, Audi for comfort, Mercedes for laid-back luxury.
Price and Value
- Audi A5: Starts at £42,000 (£3k savings via Carwow).
- BMW 3 Series: From £40,000 (£4k savings).
- Mercedes C-Class: Begins at £45,000 (lease deals available).
The BMW offers the best value, while the Mercedes’ PHEV variant appeals to company car users.
Final Verdict
- BMW 3 Series: Best all-rounder with sporty handling and timeless design.
- Audi A5: Top pick for practicality and relaxed cruising.
- Mercedes C-Class: Luxurious interior but hampered by hybrid compromises.
Which would you choose? Share your thoughts in the comments!
For deals on these models, check out Carwow for savings up to £4,000 and tailored lease options.
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