1991 Pontiac Firebird vs. 2007 Porsche Cayenne
To start off, 2007 Porsche Cayenne is newer by 16 year(s). Which means there will be less support and parts availability for 1991 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1991 Pontiac Firebird would be higher. At 3,189 cc, 2007 Porsche Cayenne is equipped with a bigger engine. In terms of performance, 2007 Porsche Cayenne (247 HP @ 6000 RPM) has 107 more horse power than 1991 Pontiac Firebird. (140 HP @ 4400 RPM) In normal driving conditions, 2007 Porsche Cayenne should accelerate faster than 1991 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2007 Porsche Cayenne weights approximately 945 kg more than 1991 Pontiac Firebird. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Porsche Cayenne is four wheel drive (4WD), it will have significant more traction and grip than 1991 Pontiac Firebird. In wet, icy, snow, or gravel driving conditions, 2007 Porsche Cayenne 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 Porsche Cayenne (310 Nm @ 5500 RPM) has 66 more torque (in Nm) than 1991 Pontiac Firebird. (244 Nm @ 3600 RPM). This means 2007 Porsche Cayenne will have an easier job in driving up hills or pulling heavy equipment than 1991 Pontiac Firebird.
Compare all specifications:
| 1991 Pontiac Firebird | 2007 Porsche Cayenne | |
| Make | Pontiac | Porsche |
| Model | Firebird | Cayenne |
| Year Released | 1991 | 2007 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 3128 cc | 3189 cc |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 140 HP | 247 HP |
| Engine RPM | 4400 RPM | 6000 RPM |
| Torque | 244 Nm | 310 Nm |
| Torque RPM | 3600 RPM | 5500 RPM |
| Engine Bore Size | 88.9 mm | 84 mm |
| Engine Stroke Size | 84 mm | 95.9 mm |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 175 km/hour | 214 km/hour |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1410 kg | 2355 kg |
| Vehicle Length | 4790 mm | 4790 mm |
| Vehicle Width | 1850 mm | 1710 mm |
| Vehicle Height | 1280 mm | 1930 mm |
| Wheelbase Size | 2570 mm | 2860 mm |
| Fuel Tank Capacity | 59 L | 100 L |
