Opel Signum 2003 vs Mazda 6 2005
| Gearbox: | Manual | Manual | |
|---|---|---|---|
| Engine: | 2.2 Diesel | 2.0 Diesel | |
| Camshaft drive: | Timing chain | Timing belt | |
| Engine chain usually needs to be replaced less often than the timing belt, but the cost of replacing the chain is usually higher. Chain motors are considered to be more reliable, but noisier and more vibration generating. | |||
Performance | |||
| Power: | 125 HP | 121 HP | |
| Torque: | 280 NM | 320 NM | |
| Acceleration 0-100 km/h: | 11.2 seconds | 10.6 seconds | |
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Mazda 6 is a more dynamic driving. Opel Signum engine produces 4 HP more power than Mazda 6, but torque is 40 NM less than Mazda 6. Despite the higher power, Opel Signum reaches 100 km/h speed 0.6 seconds later. | |||
Fuel consumption | |||
| Fuel consumption (l/100km): | 6.3 | 6.0 | |
| Real fuel consumption: | 6.3 l/100km | 6.6 l/100km | |
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By specification Opel Signum consumes 0.3 litres more fuel per 100 km than the Mazda 6, which means that if you drive 15,000 km in a year, the Opel Signum could require 45 litres more fuel. But when we compare the real fuel consumption reported by users, Opel Signum consumes 0.3 litres less fuel per 100 km than the Mazda 6. | |||
| Fuel tank capacity: | 60 litres | 64 litres | |
| Full fuel tank distance: | 950 km in combined cycle | 1060 km in combined cycle | |
| 1200 km on highway | 1250 km on highway | ||
| 950 km with real consumption | 960 km with real consumption | ||
| Mazda 6 gets more mileage on one fuel tank. | |||
Engines | |||
| Average engine lifespan: | 480'000 km | 390'000 km | |
| Engine resource depends largely on regular maintenance and the quality of the oils and fuels used, but under equal conditions the average life of a Opel Signum engine could be longer. | |||
| Engine production duration: | 5 years | 5 years | |
| Engine spread: | Installed on at least 3 other car models, including Opel Astra, Opel Zafira, Opel Vectra | Installed on at least 2 other car models, including Mazda 3, Mazda 5 | |
| In general, the longer and for more car models an engine is produced, the better its serviceability and availability of spare parts. Opel Signum might be a better choice in this respect. | |||
| Hydraulic tappets: | yes | no | |
| The Opel Signum engine has hydraulic tappets (lifters), providing quieter operation and no need for periodic adjustment, but they are more complex in design and can cause serious engine damage in case of failure. | |||
Dimensions | |||
| Length: | 4.64 m | 4.69 m | |
| Width: | 1.80 m | 1.78 m | |
| Height: | 1.47 m | 1.44 m | |
| Both cars are similar in size. Opel Signum is 5 cm shorter than the Mazda 6, 2 cm wider, while the height of Opel Signum is 3 cm higher. | |||
| Trunk capacity: | 365 litres | 492 litres | |
| Trunk max capacity: with rear seats folded down |
1410 litres | 1662 litres | |
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Mazda 6 has more luggage space. Opel Signum has 127 litres less trunk space than the Mazda 6. The maximum boot capacity (with all rear seats folded down) is larger in Mazda 6 (by 252 litres). | |||
| Turning diameter: | 11.2 meters | 10.8 meters | |
| The turning circle of the Opel Signum is 0.4 metres more than that of the Mazda 6. | |||
| Gross weight (kg): | 2`125 | 2`015 | |
| Safety: | |||
| Quality: | average | average | |
| Opel Signum has slightly fewer faults. Deffect rate in annual technical inspection is similar for both cars, it's slightly higher for Mazda 6, so Opel Signum quality could be a bit better. | |||
| Average price (€): | 1400 | 1800 | |
| Rating in user reviews: | 7.6/10 | 7.7/10 | |
| Pros and Cons: |
Opel Signum has
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Mazda 6 has
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