2007 Cadillac SRX vs. 1981 Pontiac Firebird
To start off, 2007 Cadillac SRX 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 5,012 cc (8 cylinders), 1981 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 2007 Cadillac SRX (255 HP @ 6500 RPM) has 110 more horse power than 1981 Pontiac Firebird. (145 HP @ 3800 RPM). In normal driving conditions, 2007 Cadillac SRX should accelerate faster than 1981 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2007 Cadillac SRX weights approximately 347 kg more than 1981 Pontiac Firebird. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Cadillac SRX 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 Cadillac SRX 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 Cadillac SRX (344 Nm @ 2800 RPM) has 20 more torque (in Nm) than 1981 Pontiac Firebird. (324 Nm @ 2400 RPM). This means 2007 Cadillac SRX will have an easier job in driving up hills or pulling heavy equipment than 1981 Pontiac Firebird. 2007 Cadillac SRX has automatic transmission and 1981 Pontiac Firebird has manual transmission. 1981 Pontiac Firebird will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Cadillac SRX will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Cadillac SRX | 1981 Pontiac Firebird | |
| Make | Cadillac | Pontiac |
| Model | SRX | Firebird |
| Year Released | 2007 | 1981 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3556 cc | 5012 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 255 HP | 145 HP |
| Engine RPM | 6500 RPM | 3800 RPM |
| Torque | 344 Nm | 324 Nm |
| Torque RPM | 2800 RPM | 2400 RPM |
| Engine Compression Ratio | 10.2:1 | 8.6:1 |
| Fuel Type | Gasoline - Premium | 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 | 1889 kg | 1542 kg |
| Vehicle Length | 4960 mm | 5040 mm |
| Vehicle Width | 1850 mm | 1860 mm |
| Vehicle Height | 1730 mm | 1260 mm |
| Wheelbase Size | 2960 mm | 2750 mm |
| Fuel Tank Capacity | 76 L | 79 L |
