2007 Isuzu Ascender vs. 1981 Pontiac Firebird
To start off, 2007 Isuzu Ascender is newer by 26 year(s). Which means there will be less support and parts availability for 1981 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1981 Pontiac Firebird would be higher. At 4,193 cc (6 cylinders), 2007 Isuzu Ascender is equipped with a bigger engine. In terms of performance, 2007 Isuzu Ascender (291 HP @ 6000 RPM) has 181 more horse power than 1981 Pontiac Firebird. (110 HP @ 3800 RPM). In normal driving conditions, 2007 Isuzu Ascender should accelerate faster than 1981 Pontiac Firebird.
Because 2007 Isuzu Ascender is four wheel drive (4WD), it will have significant more traction and grip than 1981 Pontiac Firebird. In wet, icy, snow, or gravel driving conditions, 2007 Isuzu Ascender 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 Isuzu Ascender (376 Nm @ 4800 RPM) has 120 more torque (in Nm) than 1981 Pontiac Firebird. (256 Nm @ 1600 RPM). This means 2007 Isuzu Ascender will have an easier job in driving up hills or pulling heavy equipment than 1981 Pontiac Firebird.
Compare all specifications:
| 2007 Isuzu Ascender | 1981 Pontiac Firebird | |
| Make | Isuzu | Pontiac |
| Model | Ascender | Firebird |
| Year Released | 2007 | 1981 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4193 cc | 3790 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 291 HP | 110 HP |
| Engine RPM | 6000 RPM | 3800 RPM |
| Torque | 376 Nm | 256 Nm |
| Torque RPM | 4800 RPM | 1600 RPM |
| Engine Bore Size | 93 mm | 96.5 mm |
| Engine Stroke Size | 102 mm | 86.4 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Length | 4870 mm | 5040 mm |
| Vehicle Width | 1940 mm | 1860 mm |
| Vehicle Height | 1830 mm | 1260 mm |
| Wheelbase Size | 2880 mm | 2750 mm |
| Fuel Tank Capacity | 82 L | 79 L |
