2003 BMW 645 vs. 1981 Isuzu Trooper
To start off, 2003 BMW 645 is newer by 22 year(s). Which means there will be less support and parts availability for 1981 Isuzu Trooper. In addition, the cost of maintenance, including insurance, on 1981 Isuzu Trooper 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 196 more horse power than 1981 Isuzu Trooper. (114 HP @ 5000 RPM). In normal driving conditions, 2003 BMW 645 should accelerate faster than 1981 Isuzu Trooper. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 645 weights approximately 138 kg more than 1981 Isuzu Trooper. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1981 Isuzu Trooper is four wheel drive (4WD), it will have significant more traction and grip than 2003 BMW 645. In wet, icy, snow, or gravel driving conditions, 1981 Isuzu Trooper will offer significantly more control. 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 255 more torque (in Nm) than 1981 Isuzu Trooper. (195 Nm @ 2500 RPM). This means 2003 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1981 Isuzu Trooper.
Compare all specifications:
| 2003 BMW 645 | 1981 Isuzu Trooper | |
| Make | BMW | Isuzu |
| Model | 645 | Trooper |
| Year Released | 2003 | 1981 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 2559 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 310 HP | 114 HP |
| Engine RPM | 6000 RPM | 5000 RPM |
| Torque | 450 Nm | 195 Nm |
| Torque RPM | 3600 RPM | 2500 RPM |
| Drive Type | Rear | 4WD |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1698 kg | 1560 kg |
| Vehicle Length | 4830 mm | 4390 mm |
| Vehicle Width | 1860 mm | 1660 mm |
| Vehicle Height | 1380 mm | 1820 mm |
| Wheelbase Size | 2790 mm | 2660 mm |
