2005 Audi S4 vs. 1973 Pontiac Firebird
To start off, 2005 Audi S4 is newer by 32 year(s). Which means there will be less support and parts availability for 1973 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1973 Pontiac Firebird would be higher. At 6,547 cc (8 cylinders), 1973 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 55 more horse power than 1973 Pontiac Firebird. (285 HP @ 4400 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 1973 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 139 kg more than 1973 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, 1973 Pontiac Firebird (421 Nm) has 11 more torque (in Nm) than 2005 Audi S4. (410 Nm). This means 1973 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi S4.
Compare all specifications:
| 2005 Audi S4 | 1973 Pontiac Firebird | |
| Make | Audi | Pontiac |
| Model | S4 | Firebird |
| Year Released | 2005 | 1973 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 6547 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 340 HP | 285 HP |
| Engine RPM | 6300 RPM | 4400 RPM |
| Torque | 410 Nm | 421 Nm |
| Engine Bore Size | 85.1 mm | 104.7 mm |
| Engine Stroke Size | 93 mm | 95.3 mm |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1735 kg | 1596 kg |
| Vehicle Length | 4550 mm | 4880 mm |
| Vehicle Width | 1770 mm | 1870 mm |
| Vehicle Height | 1430 mm | 1290 mm |
| Wheelbase Size | 2660 mm | 2750 mm |
| Fuel Tank Capacity | 63 L | 76 L |
