2007 BMW X5 vs. 1973 Pontiac Firebird
To start off, 2007 BMW X5 is newer by 34 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 4,092 cc (6 cylinders), 1973 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 2007 BMW X5 (215 HP @ 4000 RPM) has 107 more horse power than 1973 Pontiac Firebird. (108 HP @ 3600 RPM). In normal driving conditions, 2007 BMW X5 should accelerate faster than 1973 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X5 weights approximately 702 kg more than 1973 Pontiac Firebird. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 BMW X5 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, 2007 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, 2007 BMW X5 (500 Nm @ 2000 RPM) has 263 more torque (in Nm) than 1973 Pontiac Firebird. (237 Nm @ 1600 RPM). This means 2007 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1973 Pontiac Firebird.
Compare all specifications:
| 2007 BMW X5 | 1973 Pontiac Firebird | |
| Make | BMW | Pontiac |
| Model | X5 | Firebird |
| Year Released | 2007 | 1973 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 4092 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 215 HP | 108 HP |
| Engine RPM | 4000 RPM | 3600 RPM |
| Torque | 500 Nm | 237 Nm |
| Torque RPM | 2000 RPM | 1600 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2172 kg | 1470 kg |
| Vehicle Length | 4670 mm | 4880 mm |
| Vehicle Width | 1880 mm | 1870 mm |
| Vehicle Height | 1720 mm | 1290 mm |
| Wheelbase Size | 2830 mm | 2750 mm |
