2009 Audi A4 vs. 1971 BMW Touring
To start off, 2009 Audi A4 is newer by 38 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 1,797 cc (4 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (158 HP @ 4500 RPM) has 73 more horse power than 1971 BMW Touring. (85 HP @ 5700 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 1971 BMW Touring. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 440 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, 2009 Audi A4 (250 Nm @ 1500 RPM) has 120 more torque (in Nm) than 1971 BMW Touring. (130 Nm @ 3500 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1971 BMW Touring.
Compare all specifications:
| 2009 Audi A4 | 1971 BMW Touring | |
| Make | Audi | BMW |
| Model | A4 | Touring |
| Year Released | 2009 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 1797 cc | 1573 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 158 HP | 85 HP |
| Engine RPM | 4500 RPM | 5700 RPM |
| Torque | 250 Nm | 130 Nm |
| Torque RPM | 1500 RPM | 3500 RPM |
| Engine Bore Size | 82.5 mm | 84.1 mm |
| Engine Stroke Size | 84.1 mm | 71 mm |
| Engine Compression Ratio | 9.6:1 | 8.6:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1470 kg | 1030 kg |
| Vehicle Length | 4710 mm | 4120 mm |
| Vehicle Width | 1830 mm | 1600 mm |
| Vehicle Height | 1440 mm | 1390 mm |
| Wheelbase Size | 2810 mm | 2510 mm |
