2005 Ford Explorer vs. 1991 Pontiac Firebird
To start off, 2005 Ford Explorer is newer by 14 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 4,016 cc (6 cylinders), 2005 Ford Explorer is equipped with a bigger engine. In terms of performance, 2005 Ford Explorer (210 HP @ 5250 RPM) has 70 more horse power than 1991 Pontiac Firebird. (140 HP @ 4400 RPM). In normal driving conditions, 2005 Ford Explorer should accelerate faster than 1991 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2005 Ford Explorer weights approximately 529 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 2005 Ford Explorer 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, 2005 Ford Explorer 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 Ford Explorer (321 Nm @ 3000 RPM) has 77 more torque (in Nm) than 1991 Pontiac Firebird. (244 Nm @ 3600 RPM). This means 2005 Ford Explorer will have an easier job in driving up hills or pulling heavy equipment than 1991 Pontiac Firebird.
Compare all specifications:
| 2005 Ford Explorer | 1991 Pontiac Firebird | |
| Make | Ford | Pontiac |
| Model | Explorer | Firebird |
| Year Released | 2005 | 1991 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4016 cc | 3128 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 210 HP | 140 HP |
| Engine RPM | 5250 RPM | 4400 RPM |
| Torque | 321 Nm | 244 Nm |
| Torque RPM | 3000 RPM | 3600 RPM |
| Engine Bore Size | 100.5 mm | 88.9 mm |
| Engine Stroke Size | 84.4 mm | 84 mm |
| Engine Compression Ratio | 9.7:1 | 8.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1939 kg | 1410 kg |
| Vehicle Length | 5240 mm | 4790 mm |
| Vehicle Width | 1830 mm | 1850 mm |
| Vehicle Height | 1790 mm | 1280 mm |
| Wheelbase Size | 3030 mm | 2570 mm |
| Fuel Tank Capacity | 85 L | 59 L |
