2007 BMW X5 vs. 1999 Pontiac Firebird
To start off, 2007 BMW X5 is newer by 8 year(s). Which means there will be less support and parts availability for 1999 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1999 Pontiac Firebird would be higher. At 5,700 cc (8 cylinders), 1999 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 2007 BMW X5 (316 HP @ 6100 RPM) has 168 more horse power than 1999 Pontiac Firebird. (148 HP @ 5600 RPM). In normal driving conditions, 2007 BMW X5 should accelerate faster than 1999 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X5 weights approximately 605 kg more than 1999 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 1999 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, 1999 Pontiac Firebird (454 Nm) has 14 more torque (in Nm) than 2007 BMW X5. (440 Nm). This means 1999 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW X5. 2007 BMW X5 has automatic transmission and 1999 Pontiac Firebird has manual transmission. 1999 Pontiac Firebird will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW X5 | 1999 Pontiac Firebird | |
| Make | BMW | Pontiac |
| Model | X5 | Firebird |
| Year Released | 2007 | 1999 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 5700 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 316 HP | 148 HP |
| Engine RPM | 6100 RPM | 5600 RPM |
| Torque | 440 Nm | 454 Nm |
| 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 | 2191 kg | 1586 kg |
| Vehicle Height | 1880 mm | 1900 mm |
| Fuel Tank Capacity | 85 L | 54 L |
