2005 BMW X5 vs. 1979 Pontiac Trans Am
To start off, 2005 BMW X5 is newer by 26 year(s). Which means there will be less support and parts availability for 1979 Pontiac Trans Am. In addition, the cost of maintenance, including insurance, on 1979 Pontiac Trans Am would be higher. At 6,555 cc (8 cylinders), 1979 Pontiac Trans Am is equipped with a bigger engine. In terms of performance, 1979 Pontiac Trans Am (220 HP) has 5 more horse power than 2005 BMW X5. (215 HP) In normal driving conditions, 1979 Pontiac Trans Am should accelerate faster than 2005 BMW X5.
Because 2005 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1979 Pontiac Trans Am. In wet, icy, snow, or gravel driving conditions, 2005 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, 2005 BMW X5 (520 Nm) has 86 more torque (in Nm) than 1979 Pontiac Trans Am. (434 Nm). This means 2005 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1979 Pontiac Trans Am.
Compare all specifications:
| 2005 BMW X5 | 1979 Pontiac Trans Am | |
| Make | BMW | Pontiac |
| Model | X5 | Trans Am |
| Year Released | 2005 | 1979 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2926 cc | 6555 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 215 HP | 220 HP |
| Torque | 520 Nm | 434 Nm |
| Engine Bore Size | 84 mm | 104.7 mm |
| Engine Stroke Size | 90 mm | 95.3 mm |
| Engine Compression Ratio | 18.0:1 | 8.1:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Length | 4670 mm | 5040 mm |
| Vehicle Width | 1880 mm | 1860 mm |
| Vehicle Height | 1720 mm | 1260 mm |
| Wheelbase Size | 2830 mm | 2750 mm |
