2007 BMW 523 vs. 1991 Chevrolet Blazer
To start off, 2007 BMW 523 is newer by 16 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 4,300 cc (6 cylinders), 1991 Chevrolet Blazer is equipped with a bigger engine. In terms of performance, 2007 BMW 523 (175 HP @ 5800 RPM) has 17 more horse power than 1991 Chevrolet Blazer. (158 HP @ 4000 RPM). In normal driving conditions, 2007 BMW 523 should accelerate faster than 1991 Chevrolet Blazer. With that said, vehicle weight also plays an important factor in acceleration. 1991 Chevrolet Blazer weights approximately 40 kg more than 2007 BMW 523.
Because 1991 Chevrolet Blazer is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW 523. 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, 1991 Chevrolet Blazer (312 Nm @ 2800 RPM) has 82 more torque (in Nm) than 2007 BMW 523. (230 Nm @ 3500 RPM). This means 1991 Chevrolet Blazer will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 523.
Compare all specifications:
| 2007 BMW 523 | 1991 Chevrolet Blazer | |
| Make | BMW | Chevrolet |
| Model | 523 | Blazer |
| Year Released | 2007 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2496 cc | 4300 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 175 HP | 158 HP |
| Engine RPM | 5800 RPM | 4000 RPM |
| Torque | 230 Nm | 312 Nm |
| Torque RPM | 3500 RPM | 2800 RPM |
| Engine Bore Size | 82 mm | 101.6 mm |
| Engine Stroke Size | 78.8 mm | 88.4 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1490 kg | 1530 kg |
| Vehicle Length | 4850 mm | 4500 mm |
| Vehicle Width | 1470 mm | 1670 mm |
| Vehicle Height | 1850 mm | 1630 mm |
| Wheelbase Size | 2890 mm | 2720 mm |
