2008 BMW X5 vs. 1981 Pontiac Firebird
To start off, 2008 BMW X5 is newer by 27 year(s). Which means there will be less support and parts availability for 1981 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1981 Pontiac Firebird would be higher. At 5,012 cc (8 cylinders), 1981 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 2008 BMW X5 (228 HP @ 5900 RPM) has 83 more horse power than 1981 Pontiac Firebird. (145 HP @ 3800 RPM). In normal driving conditions, 2008 BMW X5 should accelerate faster than 1981 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW X5 weights approximately 528 kg more than 1981 Pontiac Firebird. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1981 Pontiac Firebird. In wet, icy, snow, or gravel driving conditions, 2008 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, 1981 Pontiac Firebird (324 Nm @ 2400 RPM) has 24 more torque (in Nm) than 2008 BMW X5. (300 Nm @ 3500 RPM). This means 1981 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW X5. 2008 BMW X5 has automatic transmission and 1981 Pontiac Firebird has manual transmission. 1981 Pontiac Firebird will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
2008 BMW X5 | 1981 Pontiac Firebird | |
Make | BMW | Pontiac |
Model | X5 | Firebird |
Year Released | 2008 | 1981 |
Body Type | SUV | Coupe |
Engine Position | Front | Front |
Engine Size | 2979 cc | 5012 cc |
Engine Cylinders | 6 cylinders | 8 cylinders |
Engine Type | in-line | V |
Valves per Cylinder | 4 valves | 2 valves |
Horse Power | 228 HP | 145 HP |
Engine RPM | 5900 RPM | 3800 RPM |
Torque | 300 Nm | 324 Nm |
Torque RPM | 3500 RPM | 2400 RPM |
Engine Bore Size | 84.1 mm | 95 mm |
Engine Stroke Size | 89.6 mm | 88.4 mm |
Engine Compression Ratio | 10.2:1 | 8.6:1 |
Fuel Type | Gasoline | Gasoline |
Drive Type | 4WD | Rear |
Transmission Type | Automatic | Manual |
Number of Seats | 5 seats | 4 seats |
Number of Doors | 5 doors | 2 doors |
Vehicle Weight | 2070 kg | 1542 kg |
Vehicle Length | 4670 mm | 5040 mm |
Vehicle Width | 1880 mm | 1860 mm |
Vehicle Height | 1720 mm | 1260 mm |
Wheelbase Size | 2830 mm | 2750 mm |
Fuel Tank Capacity | 93 L | 79 L |