2004 BMW 645 vs. 1981 Pontiac Firebird
To start off, 2004 BMW 645 is newer by 23 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, 2004 BMW 645 (322 HP @ 7400 RPM) has 177 more horse power than 1981 Pontiac Firebird. (145 HP @ 3800 RPM). In normal driving conditions, 2004 BMW 645 should accelerate faster than 1981 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 645 weights approximately 173 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.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2004 BMW 645 (447 Nm) has 123 more torque (in Nm) than 1981 Pontiac Firebird. (324 Nm). This means 2004 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1981 Pontiac Firebird.
Compare all specifications:
2004 BMW 645 | 1981 Pontiac Firebird | |
Make | BMW | Pontiac |
Model | 645 | Firebird |
Year Released | 2004 | 1981 |
Body Type | Coupe | Coupe |
Engine Position | Front | Front |
Engine Size | 4392 cc | 5012 cc |
Engine Cylinders | 8 cylinders | 8 cylinders |
Engine Type | V | V |
Valves per Cylinder | 4 valves | 2 valves |
Horse Power | 322 HP | 145 HP |
Engine RPM | 7400 RPM | 3800 RPM |
Torque | 447 Nm | 324 Nm |
Engine Bore Size | 92 mm | 95 mm |
Engine Stroke Size | 83 mm | 88.4 mm |
Engine Compression Ratio | 10.5:1 | 8.6:1 |
Drive Type | Rear | Rear |
Number of Seats | 4 seats | 4 seats |
Number of Doors | 2 doors | 2 doors |
Vehicle Weight | 1715 kg | 1542 kg |
Vehicle Length | 4840 mm | 5040 mm |
Vehicle Width | 1860 mm | 1860 mm |
Vehicle Height | 1380 mm | 1260 mm |
Wheelbase Size | 2790 mm | 2750 mm |
Fuel Tank Capacity | 70 L | 79 L |