2003 BMW X3 vs. 1987 Pontiac Firebird
To start off, 2003 BMW X3 is newer by 16 year(s). Which means there will be less support and parts availability for 1987 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1987 Pontiac Firebird would be higher. At 2,995 cc (6 cylinders), 2003 BMW X3 is equipped with a bigger engine. In terms of performance, 2003 BMW X3 (201 HP @ 4000 RPM) has 68 more horse power than 1987 Pontiac Firebird. (133 HP @ 5100 RPM). In normal driving conditions, 2003 BMW X3 should accelerate faster than 1987 Pontiac Firebird.
Because 2003 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 1987 Pontiac Firebird. In wet, icy, snow, or gravel driving conditions, 2003 BMW X3 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 X3 (410 Nm @ 1500 RPM) has 180 more torque (in Nm) than 1987 Pontiac Firebird. (230 Nm @ 3600 RPM). This means 2003 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 1987 Pontiac Firebird.
Compare all specifications:
| 2003 BMW X3 | 1987 Pontiac Firebird | |
| Make | BMW | Pontiac |
| Model | X3 | Firebird |
| Year Released | 2003 | 1987 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2995 cc | 2825 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 201 HP | 133 HP |
| Engine RPM | 4000 RPM | 5100 RPM |
| Torque | 410 Nm | 230 Nm |
| Torque RPM | 1500 RPM | 3600 RPM |
| Engine Bore Size | 84 mm | 88.9 mm |
| Engine Stroke Size | 90 mm | 75.9 mm |
| Engine Compression Ratio | 17.0:1 | 8.5:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Length | 4570 mm | 4850 mm |
| Vehicle Width | 1860 mm | 1860 mm |
| Vehicle Height | 1680 mm | 1380 mm |
| Wheelbase Size | 2730 mm | 2580 mm |
| Fuel Tank Capacity | 67 L | 60 L |
