1974 BMW Touring vs. 2005 Opel Astra
To start off, 2005 Opel Astra is newer by 31 year(s). Which means there will be less support and parts availability for 1974 BMW Touring. In addition, the cost of maintenance, including insurance, on 1974 BMW Touring would be higher. At 1,597 cc (4 cylinders), 2005 Opel Astra is equipped with a bigger engine. In terms of performance, 2005 Opel Astra (104 HP @ 6000 RPM) has 19 more horse power than 1974 BMW Touring. (85 HP @ 5700 RPM) In normal driving conditions, 2005 Opel Astra should accelerate faster than 1974 BMW Touring. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Astra weights approximately 180 kg more than 1974 BMW Touring. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Opel Astra (150 Nm @ 3900 RPM) has 20 more torque (in Nm) than 1974 BMW Touring. (130 Nm @ 3500 RPM). This means 2005 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 1974 BMW Touring.
Compare all specifications:
| 1974 BMW Touring | 2005 Opel Astra | |
| Make | BMW | Opel |
| Model | Touring | Astra |
| Year Released | 1974 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1572 cc | 1597 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 85 HP | 104 HP |
| Engine RPM | 5700 RPM | 6000 RPM |
| Torque | 130 Nm | 150 Nm |
| Torque RPM | 3500 RPM | 3900 RPM |
| Engine Bore Size | 84 mm | 79 mm |
| Engine Stroke Size | 71 mm | 81.5 mm |
| Engine Compression Ratio | 8.6:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1030 kg | 1210 kg |
| Vehicle Length | 4120 mm | 4260 mm |
| Vehicle Width | 1600 mm | 1760 mm |
| Vehicle Height | 1390 mm | 1470 mm |
| Wheelbase Size | 2510 mm | 2640 mm |
