1973 Pontiac Firebird vs. 2009 BMW 525
To start off, 2009 BMW 525 is newer by 36 year(s). Which means there will be less support and parts availability for 1973 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1973 Pontiac Firebird would be higher. At 6,547 cc (8 cylinders), 1973 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1973 Pontiac Firebird (285 HP @ 4400 RPM) has 70 more horse power than 2009 BMW 525. (215 HP @ 6500 RPM). In normal driving conditions, 1973 Pontiac Firebird should accelerate faster than 2009 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 1973 Pontiac Firebird weights approximately 71 kg more than 2009 BMW 525. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 BMW 525 is four wheel drive (4WD), it will have significant more traction and grip than 1973 Pontiac Firebird. In wet, icy, snow, or gravel driving conditions, 2009 BMW 525 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, 1973 Pontiac Firebird (421 Nm @ 2400 RPM) has 171 more torque (in Nm) than 2009 BMW 525. (250 Nm @ 2750 RPM). This means 1973 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 525.
Compare all specifications:
| 1973 Pontiac Firebird | 2009 BMW 525 | |
| Make | Pontiac | BMW |
| Model | Firebird | 525 |
| Year Released | 1973 | 2009 |
| Body Type | Coupe | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 6547 cc | 2497 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 285 HP | 215 HP |
| Engine RPM | 4400 RPM | 6500 RPM |
| Torque | 421 Nm | 250 Nm |
| Torque RPM | 2400 RPM | 2750 RPM |
| Engine Bore Size | 104.7 mm | 78.9 mm |
| Engine Stroke Size | 95.3 mm | 82 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1596 kg | 1525 kg |
| Vehicle Length | 4880 mm | 4850 mm |
| Vehicle Width | 1870 mm | 1850 mm |
| Vehicle Height | 1290 mm | 1500 mm |
| Wheelbase Size | 2750 mm | 2840 mm |
| Fuel Tank Capacity | 76 L | 70 L |
