1971 BMW Touring vs. 2007 Opel Astra
To start off, 2007 Opel Astra is newer by 36 year(s). Which means there will be less support and parts availability for 1971 BMW Touring. In addition, the cost of maintenance, including insurance, on 1971 BMW Touring would be higher. At 1,998 cc (4 cylinders), 2007 Opel Astra is equipped with a bigger engine. In terms of performance, 2007 Opel Astra (197 HP @ 5600 RPM) has 112 more horse power than 1971 BMW Touring. (85 HP @ 5700 RPM) In normal driving conditions, 2007 Opel Astra should accelerate faster than 1971 BMW Touring. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Astra weights approximately 355 kg more than 1971 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, 2007 Opel Astra (262 Nm @ 4200 RPM) has 132 more torque (in Nm) than 1971 BMW Touring. (130 Nm @ 3500 RPM). This means 2007 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 1971 BMW Touring.
Compare all specifications:
| 1971 BMW Touring | 2007 Opel Astra | |
| Make | BMW | Opel |
| Model | Touring | Astra |
| Year Released | 1971 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1573 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 85 HP | 197 HP |
| Engine RPM | 5700 RPM | 5600 RPM |
| Torque | 130 Nm | 262 Nm |
| Torque RPM | 3500 RPM | 4200 RPM |
| Engine Bore Size | 84.1 mm | 86 mm |
| Engine Stroke Size | 71 mm | 86 mm |
| Engine Compression Ratio | 8.6:1 | 8.8:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1030 kg | 1385 kg |
| Vehicle Length | 4120 mm | 4260 mm |
| Vehicle Width | 1600 mm | 1760 mm |
| Vehicle Height | 1390 mm | 1470 mm |
| Wheelbase Size | 2510 mm | 2620 mm |
