2005 Audi S4 vs. 1985 Pontiac Firebird
To start off, 2005 Audi S4 is newer by 20 year(s). Which means there will be less support and parts availability for 1985 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1985 Pontiac Firebird would be higher. At 5,013 cc (8 cylinders), 1985 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6200 RPM) has 150 more horse power than 1985 Pontiac Firebird. (190 HP @ 4800 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 1985 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 308 kg more than 1985 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, 2005 Audi S4 (410 Nm) has 85 more torque (in Nm) than 1985 Pontiac Firebird. (325 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1985 Pontiac Firebird.
Compare all specifications:
| 2005 Audi S4 | 1985 Pontiac Firebird | |
| Make | Audi | Pontiac |
| Model | S4 | Firebird |
| Year Released | 2005 | 1985 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 5013 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 340 HP | 190 HP |
| Engine RPM | 6200 RPM | 4800 RPM |
| Torque | 410 Nm | 325 Nm |
| Engine Bore Size | 85 mm | 95 mm |
| Engine Stroke Size | 93 mm | 88.4 mm |
| Engine Compression Ratio | 11.0:1 | 9.5:1 |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1782 kg | 1474 kg |
| Vehicle Length | 4550 mm | 4880 mm |
| Vehicle Width | 1770 mm | 1850 mm |
| Vehicle Height | 1430 mm | 1270 mm |
| Wheelbase Size | 2760 mm | 2570 mm |
| Fuel Tank Capacity | 66 L | 61 L |
