1976 Alfa Romeo Navajo vs. 2003 BMW 645
To start off, 2003 BMW 645 is newer by 27 year(s). Which means there will be less support and parts availability for 1976 Alfa Romeo Navajo. In addition, the cost of maintenance, including insurance, on 1976 Alfa Romeo Navajo 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 (310 HP @ 6000 RPM) has 82 more horse power than 1976 Alfa Romeo Navajo. (228 HP @ 8800 RPM) In normal driving conditions, 2003 BMW 645 should accelerate faster than 1976 Alfa Romeo Navajo. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 645 weights approximately 828 kg more than 1976 Alfa Romeo Navajo. 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 144 more torque (in Nm) than 1976 Alfa Romeo Navajo. (306 Nm @ 7000 RPM). This means 2003 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1976 Alfa Romeo Navajo. 2003 BMW 645 has automatic transmission and 1976 Alfa Romeo Navajo has manual transmission. 1976 Alfa Romeo Navajo will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 BMW 645 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1976 Alfa Romeo Navajo | 2003 BMW 645 | |
| Make | Alfa Romeo | BMW |
| Model | Navajo | 645 |
| Year Released | 1976 | 2003 |
| Engine Position | Middle | Front |
| Engine Size | 1995 cc | 4398 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 228 HP | 310 HP |
| Engine RPM | 8800 RPM | 6000 RPM |
| Torque | 306 Nm | 450 Nm |
| Torque RPM | 7000 RPM | 3600 RPM |
| Engine Bore Size | 78 mm | 92 mm |
| Engine Stroke Size | 52.2 mm | 82.7 mm |
| Engine Compression Ratio | 10.0:1 | 10.5:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 870 kg | 1698 kg |
| Vehicle Length | 3810 mm | 4830 mm |
| Vehicle Width | 1870 mm | 1860 mm |
| Vehicle Height | 1060 mm | 1380 mm |
| Wheelbase Size | 2440 mm | 2790 mm |
