2006 BMW X5 vs. 1986 Pontiac Firebird
To start off, 2006 BMW X5 is newer by 20 year(s). Which means there will be less support and parts availability for 1986 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1986 Pontiac Firebird would be higher. At 2,981 cc (6 cylinders), 2006 BMW X5 is equipped with a bigger engine. In terms of performance, 2006 BMW X5 (225 HP @ 5900 RPM) has 85 more horse power than 1986 Pontiac Firebird. (140 HP @ 5100 RPM). In normal driving conditions, 2006 BMW X5 should accelerate faster than 1986 Pontiac Firebird.
Because 2006 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1986 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 (290 Nm @ 3500 RPM) has 60 more torque (in Nm) than 1986 Pontiac Firebird. (230 Nm @ 3600 RPM). This means 2006 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1986 Pontiac Firebird.
Compare all specifications:
| 2006 BMW X5 | 1986 Pontiac Firebird | |
| Make | BMW | Pontiac |
| Model | X5 | Firebird |
| Year Released | 2006 | 1986 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2981 cc | 2827 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 225 HP | 140 HP |
| Engine RPM | 5900 RPM | 5100 RPM |
| Torque | 290 Nm | 230 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 |
| 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 | 1770 mm | 1380 mm |
| Wheelbase Size | 2830 mm | 2580 mm |
| Fuel Tank Capacity | 92 L | 60 L |
