1961 Austin A 99 vs. 2003 BMW 645
To start off, 2003 BMW 645 is newer by 42 year(s). Which means there will be less support and parts availability for 1961 Austin A 99. In addition, the cost of maintenance, including insurance, on 1961 Austin A 99 would be higher. At 4,398 cc (8 cylinders), 2003 BMW 645 is equipped with a bigger engine. In terms of performance, 2003 BMW 645 (325 HP @ 6100 RPM) has 218 more horse power than 1961 Austin A 99. (107 HP @ 4750 RPM) In normal driving conditions, 2003 BMW 645 should accelerate faster than 1961 Austin A 99. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 645 weights approximately 160 kg more than 1961 Austin A 99. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2003 BMW 645 (450 Nm @ 3600 RPM) has 229 more torque (in Nm) than 1961 Austin A 99. (221 Nm @ 2500 RPM). This means 2003 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1961 Austin A 99.
Compare all specifications:
| 1961 Austin A 99 | 2003 BMW 645 | |
| Make | Austin | BMW |
| Model | A 99 | 645 |
| Year Released | 1961 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 2912 cc | 4398 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 107 HP | 325 HP |
| Engine RPM | 4750 RPM | 6100 RPM |
| Torque | 221 Nm | 450 Nm |
| Torque RPM | 2500 RPM | 3600 RPM |
| Engine Bore Size | 83.4 mm | 92 mm |
| Engine Stroke Size | 88.9 mm | 82.7 mm |
| Engine Compression Ratio | 8.3:1 | 10.5:1 |
| Top Speed | 162 km/hour | 250 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1530 kg | 1690 kg |
| Vehicle Length | 4950 mm | 4830 mm |
| Vehicle Width | 1750 mm | 1860 mm |
| Vehicle Height | 1540 mm | 1380 mm |
| Wheelbase Size | 2800 mm | 2890 mm |
| Fuel Tank Capacity | 34 L | 70 L |
