A4 B7 vs A6 C6: which is better?
Audi A4 B7 (2004–2008) vs Audi A6 C6 (2004–2011): specs, fuel economy, tax and common problems.
Audi A4 B7
Audi A6 C6Specifications
| Audi A4 B7 | Audi A6 C6 | |
|---|---|---|
| Production years | 2004–2008 | 2004–2011 |
| Body | sedan | sedan |
| Fuel | petrol | petrol |
| Engines | 2.0 TFSI | 2.4 V6 |
| Power, up to | 200 hp | 177 hp |
| Torque, up to | 280 Nm | 230 Nm |
| Gearbox | CVT | automatic |
| Drive | front-wheel drive | front-wheel drive |
| Length | 4 586 mm | 4 916 mm |
| Width | 1 772 mm | 1 855 mm |
| Height | 1 427 mm | 1 459 mm |
| Wheelbase | 2 648 mm | 2 843 mm |
| Fuel tank | 70 L | 70 L |
| KZ tax 2026 (car under 10 years) | ≈ 16 475 ₸ | ≈ 28 750 ₸ |
The better value is highlighted in green.
Pros, cons and common problems
Audi A4 B7
Pros
- Powerful versions: up to 200 hp
- Large tank: 70 L
- Sold in all major markets of the region — parts and mechanics available
Cons
- Gearbox Audi multitronic (CVT): chain and clutch pack wear
Gearbox (Audi multitronic (CVT)): chain and clutch pack wear; control unit failure.
Audi A6 C6
Pros
- Conventional automatic, no robotized gearbox or CVT
- Large tank: 70 L
- Sold in all major markets of the region — parts and mechanics available
Cons
- Gearbox Audi multitronic (CVT): chain and clutch pack wear
Gearbox (Audi multitronic (CVT)): chain and clutch pack wear; control unit failure.
Which one to choose
- A4 B7 — if you care more about: power, torque, kz tax 2026.
- A6 C6 — if you care more about: wheelbase.
The condition of a specific car matters more than the model: check the service history and get the engine and gearbox inspected before buying.
FAQ
Which is more powerful: A4 B7 or A6 C6?
A4 B7: up to 200 hp, A6 C6: up to 177 hp.
What is the vehicle tax in Kazakhstan?
For 2026, for a car under 10 years old: A4 B7 — about 16 475 ₸, A6 C6 — about 28 750 ₸ (base engine). A 0.7 factor applies to cars aged 10–20 years and 0.5 to cars over 20.