Opel Astra 2004 vs Opel Signum 2003
| Gearbox: | Manual | Manual | |
|---|---|---|---|
| Engine: | 1.4 Petrol | 1.8 Petrol | |
| 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: | 90 HP | 125 HP | |
| Torque: | 125 NM | 170 NM | |
| Acceleration 0-100 km/h: | 13.7 seconds | 12.2 seconds | |
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Opel Signum is a more dynamic driving. Opel Astra engine produces 35 HP less power than Opel Signum, whereas torque is 45 NM less than Opel Signum. Due to the lower power, Opel Astra reaches 100 km/h speed 1.5 seconds later. | |||
Fuel consumption | |||
| Fuel consumption (l/100km): | 6.3 | 7.9 | |
| Real fuel consumption: | 6.8 l/100km | 7.6 l/100km | |
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The Opel Astra is a better choice when it comes to fuel economy. By specification Opel Astra consumes 1.6 litres less fuel per 100 km than the Opel Signum, which means that by driving the Opel Astra over 15,000 km in a year you can save 240 litres of fuel. By comparing actual fuel consumption based on user reports, Opel Astra consumes 0.8 litres less fuel per 100 km than the Opel Signum. | |||
| Fuel tank capacity: | 52 litres | 60 litres | |
| Full fuel tank distance: | 820 km in combined cycle | 750 km in combined cycle | |
| 1000 km on highway | 980 km on highway | ||
| 760 km with real consumption | 780 km with real consumption | ||
Engines | |||
| Average engine lifespan: | 380'000 km | 420'000 km | |
| Engine resource depends largely on regular maintenance and the quality of the oils and fuels used. | |||
| Engine production duration: | 7 years | 9 years | |
| Engine spread: | Installed on at least 3 other car models, including Opel Meriva, Opel Corsa, Opel Combo | Installed on at least 4 other car models, including Opel Astra, Opel Zafira, Opel Vectra, Opel Meriva | |
| 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. | |||
| Opel Signum 2003 1.8 engine: Mechanically reliable engine, but the engine control unit can cause problems. | |||
Dimensions | |||
| Length: | 4.25 m | 4.64 m | |
| Width: | 1.75 m | 1.80 m | |
| Height: | 1.46 m | 1.47 m | |
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Opel Astra is smaller. Opel Astra is 39 cm shorter than the Opel Signum, 5 cm narrower, while the height of Opel Astra is 1 cm lower. | |||
| Trunk capacity: | 380 litres | 365 litres | |
| Trunk max capacity: with rear seats folded down |
1330 litres | 1410 litres | |
| Even though the car is shorter, Opel Astra has 15 litres more trunk space than the Opel Signum. The Opel Signum may have more interior space, so the cabin could be more spacious and more comfortable for the driver and passengers. The maximum boot capacity (with all rear seats folded down) is larger in Opel Signum (by 80 litres). | |||
| Turning diameter: | 10.5 meters | 11.2 meters | |
| The turning circle of the Opel Astra is 0.7 metres less than that of the Opel Signum, which means Opel Astra can be easier to manoeuvre in tight streets and parking spaces. | |||
| Gross weight (kg): | 1`705 | 1`995 | |
| Safety: | |||
| Quality: | above average | average | |
| Opel Astra has fewer problems. According to annual technical inspection data Opel Signum has serious deffects in 30 percent more cases than Opel Astra, so Opel Astra quality is probably significantly better | |||
| Average price (€): | 1200 | 1400 | |
| Rating in user reviews: | 7.5/10 | 7.6/10 | |
| Pros and Cons: |
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Opel Signum has
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