2003 BMW 645 vs. 1991 Chevrolet Blazer
To start off, 2003 BMW 645 is newer by 12 year(s). Which means there will be less support and parts availability for 1991 Chevrolet Blazer. In addition, the cost of maintenance, including insurance, on 1991 Chevrolet Blazer 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 167 more horse power than 1991 Chevrolet Blazer. (158 HP @ 4000 RPM). In normal driving conditions, 2003 BMW 645 should accelerate faster than 1991 Chevrolet Blazer. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 645 weights approximately 160 kg more than 1991 Chevrolet Blazer. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1991 Chevrolet Blazer 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, 1991 Chevrolet Blazer 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 138 more torque (in Nm) than 1991 Chevrolet Blazer. (312 Nm @ 2800 RPM). This means 2003 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1991 Chevrolet Blazer.
Compare all specifications:
| 2003 BMW 645 | 1991 Chevrolet Blazer | |
| Make | BMW | Chevrolet |
| Model | 645 | Blazer |
| Year Released | 2003 | 1991 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 4300 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 325 HP | 158 HP |
| Engine RPM | 6100 RPM | 4000 RPM |
| Torque | 450 Nm | 312 Nm |
| Torque RPM | 3600 RPM | 2800 RPM |
| Engine Bore Size | 92 mm | 101.6 mm |
| Engine Stroke Size | 82.7 mm | 88.4 mm |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1690 kg | 1530 kg |
| Vehicle Length | 4830 mm | 4500 mm |
| Vehicle Width | 1860 mm | 1670 mm |
| Vehicle Height | 1380 mm | 1630 mm |
| Wheelbase Size | 2890 mm | 2720 mm |
