2006 BMW X5 vs. 1983 Pontiac Firebird
To start off, 2006 BMW X5 is newer by 23 year(s). Which means there will be less support and parts availability for 1983 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1983 Pontiac Firebird would be higher. At 2,979 cc (6 cylinders), 2006 BMW X5 is equipped with a bigger engine. In terms of performance, 2006 BMW X5 (228 HP) has 94 more horse power than 1983 Pontiac Firebird. (134 HP). In normal driving conditions, 2006 BMW X5 should accelerate faster than 1983 Pontiac Firebird.
Because 2006 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1983 Pontiac Firebird. In wet, icy, snow, or gravel driving conditions, 2006 BMW X5 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, 2006 BMW X5 (300 Nm @ 3500 RPM) has 77 more torque (in Nm) than 1983 Pontiac Firebird. (223 Nm @ 3600 RPM). This means 2006 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1983 Pontiac Firebird.
Compare all specifications:
| 2006 BMW X5 | 1983 Pontiac Firebird | |
| Make | BMW | Pontiac |
| Model | X5 | Firebird |
| Year Released | 2006 | 1983 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 2827 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 228 HP | 134 HP |
| Torque | 300 Nm | 223 Nm |
| Torque RPM | 3500 RPM | 3600 RPM |
| Engine Bore Size | 84 mm | 88.9 mm |
| Engine Stroke Size | 89.6 mm | 75.9 mm |
| Engine Compression Ratio | 10.2:1 | 8.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Length | 4670 mm | 4880 mm |
| Vehicle Width | 1880 mm | 1860 mm |
| Vehicle Height | 1720 mm | 1380 mm |
| Wheelbase Size | 2830 mm | 2580 mm |
| Fuel Tank Capacity | 93 L | 60 L |
