2004 Audi S4 vs. 1981 Pontiac Firebird
To start off, 2004 Audi S4 is newer by 23 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 4,163 cc (8 cylinders), 2004 Audi S4 is equipped with a bigger engine. In terms of performance, 2004 Audi S4 (340 HP @ 6200 RPM) has 230 more horse power than 1981 Pontiac Firebird. (110 HP @ 3800 RPM). In normal driving conditions, 2004 Audi S4 should accelerate faster than 1981 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi S4 weights approximately 290 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.
Let's talk about torque, 2004 Audi S4 (411 Nm) has 155 more torque (in Nm) than 1981 Pontiac Firebird. (256 Nm). This means 2004 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1981 Pontiac Firebird.
Compare all specifications:
| 2004 Audi S4 | 1981 Pontiac Firebird | |
| Make | Audi | Pontiac |
| Model | S4 | Firebird |
| Year Released | 2004 | 1981 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 3790 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 340 HP | 110 HP |
| Engine RPM | 6200 RPM | 3800 RPM |
| Torque | 411 Nm | 256 Nm |
| Engine Bore Size | 85 mm | 96.5 mm |
| Engine Stroke Size | 93 mm | 86.4 mm |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1895 kg | 1605 kg |
| Vehicle Length | 4580 mm | 5040 mm |
| Vehicle Width | 1780 mm | 1860 mm |
| Vehicle Height | 1400 mm | 1260 mm |
| Wheelbase Size | 2770 mm | 2750 mm |
| Fuel Tank Capacity | 63 L | 79 L |
