1984 Austin Montego vs. 2006 BMW 645
To start off, 2006 BMW 645 is newer by 22 year(s). Which means there will be less support and parts availability for 1984 Austin Montego. In addition, the cost of maintenance, including insurance, on 1984 Austin Montego would be higher. At 4,398 cc (8 cylinders), 2006 BMW 645 is equipped with a bigger engine. In terms of performance, 2006 BMW 645 (328 HP @ 6100 RPM) has 213 more horse power than 1984 Austin Montego. (115 HP @ 5600 RPM) In normal driving conditions, 2006 BMW 645 should accelerate faster than 1984 Austin Montego. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 648 kg more than 1984 Austin Montego. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 BMW 645 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2006 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 1984 Austin Montego, being front wheel drive (FWD), will offer much better control with better grip. 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, 2006 BMW 645 (450 Nm @ 3600 RPM) has 265 more torque (in Nm) than 1984 Austin Montego. (185 Nm @ 2800 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1984 Austin Montego.
Compare all specifications:
| 1984 Austin Montego | 2006 BMW 645 | |
| Make | Austin | BMW |
| Model | Montego | 645 |
| Year Released | 1984 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 1994 cc | 4398 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 115 HP | 328 HP |
| Engine RPM | 5600 RPM | 6100 RPM |
| Torque | 185 Nm | 450 Nm |
| Torque RPM | 2800 RPM | 3600 RPM |
| Engine Bore Size | 84.5 mm | 92 mm |
| Engine Stroke Size | 89 mm | 82.7 mm |
| Engine Compression Ratio | 9.1:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 183 km/hour | 250 km/hour |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1044 kg | 1692 kg |
| Vehicle Length | 4470 mm | 4830 mm |
| Vehicle Width | 1720 mm | 1860 mm |
| Vehicle Height | 1430 mm | 1380 mm |
| Wheelbase Size | 2580 mm | 2790 mm |
