Audi A6 C8 vs BMW 3 Series G20
Audi A6
C8 · 2018 – 2025
The fifth-generation A6 (C8), on MLB Evo.
BMW 3 Series
G20 · 2018 – 2026
The seventh-generation 3 Series (G20), on the CLAR rear-wheel-drive platform.
Audi A6
Pick the C8 for the quiet, tech-rich A6 with the dual MMI touchscreen and the strong 40 TDI diesel — ideally a full-history example.
BMW 3 Series
Pick the 3 Series for benchmark handling, efficient engines and a premium cabin in a compact executive sedan.
Performance
EA888 45 TFSI · Petrol vs B48 320i · Petrol
| Audi A6 | BMW 3 Series | |
|---|---|---|
| Power |
245 hp
Winner
|
184 hp
|
| Torque |
370 Nm
Winner
|
300 Nm
|
| 0–100 km/h |
6,0 s
Winner
|
7,1 s
|
| Top speed |
250 km/h
Winner
|
240 km/h
|
| Power-to-weight |
148,5 hp/t
Winner
|
125,2 hp/t
|
| CO₂ emissions (WLTP) |
160 g/km
|
134 g/km
Winner
|
| Consumption (WLTP) |
7,1 L/100km
|
5,9 L/100km
Winner
|
Dimensions & space
| Audi A6 | BMW 3 Series | |
|---|---|---|
| Boot |
530 L
Winner
|
480 L
|
| Boot (seats folded) |
—
|
—
|
| Wheelbase |
2,92 m
Winner
|
2,85 m
|
| Length |
4,94 m
|
4,71 m
|
| Ground clearance |
12,0 cm
|
14,4 cm
|
| Turning circle |
12,2 m
|
11,4 m
Winner
|
| Towing capacity (braked) |
2.000 kg
Winner
|
1.600 kg
|
Powertrain & tech
| Audi A6 | BMW 3 Series | |
|---|---|---|
| Platform | MLB Evo (longitudinal) | CLAR (rear-wheel-drive base) |
| Drive | Front-wheel drive · All-wheel drive | Rear-wheel drive · All-wheel drive |
| Engine family | EA888 2.0 TFSI · EA839 3.0 TFSI · EA288 2.0 TDI · 55 TFSI e PHEV | B48 2.0 · B58 3.0 · B47 2.0 diesel · 330e PHEV |
| Transmission | 7-speed S tronic | 8-speed automatic |
| Fuel | Petrol | Petrol |
| Euro standard | Euro 6d-TEMP | Euro 6d-TEMP |
| LEZ access | Unrestricted access (compliant under current legislation) | Unrestricted access (compliant under current legislation) |
Reliability & watch-outs
Known issues
- 48V mild-hybrid (BSG): belt-starter-generator needs checking on early cars
- MMI touch (MIB3): software bugs and reboots on early C8 cars
- AdBlue/SCR on 2.0 TDI diesels with mainly short trips
- EGR cooler can leak on B47 diesels
- Transfer case (xDrive) judder on early cars
- Adaptive dampers need checking at high mileage
Pros
- Dual-screen MMI cockpit
- Quiet, refined ride
- Strong mild-hybrid diesels
- Sharp handling from rear-wheel drive
- Big boot & roomy rear seat
- Strong, efficient B-series engines
Cons
- Touchscreen-heavy controls
- Pricey options
- Firm ride on M Sport (run-flat)
- Pricier than most rivals
Driving experience
Audi A6
Comfortable, quiet and genuinely refined. The A6 rides with excellent isolation, steers accurately with light weighting, and cruises with the calm composure expected of a large executive saloon. Front-drive versions are efficient; quattro adds traction and security. The 2.0 TFSI is smooth, the 3.0 TDI V6 is the long-distance workhorse, and the 55 TFSI e plug-in covers short trips on electric power. The S tronic is quick, the tiptronic smooth. It is a tech-heavy, comfort-first executive car that does long distances with little effort.
BMW 3 Series
Precise, balanced and still the class benchmark to drive. Steering is quick, accurate and communicative, body control taut, and the rear-drive chassis stays planted yet adjustable through bends. sDrive keeps the classic 3 Series balance and a hint of playfulness; xDrive adds all-weather grip without dulling the nose. The optional adaptive M suspension spans comfortable to firmly controlled. The B48/B58 petrols are smooth and free-revving, the B47/B57 diesels pull strongly and stay refined, and the 320e/330e plug-in hybrids glide silently on electric power. The ZF 8-speed is quick and seamless; the early manual is a rare, engaging treat. Overall a poised sports saloon that blends sharp dynamics with everyday comfort.
Belgian taxes & LEZ
For sale at dealers
Audi A6
30 for sale · from € 7.990
Audi A6 35 TDI · Business Edition · CarPlay · Navigation · LED
Garage Carrera Cars
Audi A6 30 TDI · plug-in hybrid · Camera · CarPlay · LED
GDCauto
Audi A6 35 TDI · CarPlay · LED · Leather
click2move by Declerc
Audi A6 35 TDI · Camera · CarPlay · Navigation
click2move by Declerc
BMW 3 Series
0 for saleNo listings at the moment
