2008 Audi S5 vs. 1978 Pontiac Firebird
To start off, 2008 Audi S5 is newer by 30 year(s). Which means there will be less support and parts availability for 1978 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1978 Pontiac Firebird would be higher. At 4,942 cc (8 cylinders), 1978 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 2008 Audi S5 (354 HP @ 6800 RPM) has 154 more horse power than 1978 Pontiac Firebird. (200 HP @ 4000 RPM). In normal driving conditions, 2008 Audi S5 should accelerate faster than 1978 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi S5 weights approximately 180 kg more than 1978 Pontiac Firebird. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Audi S5 is four wheel drive (4WD), it will have significant more traction and grip than 1978 Pontiac Firebird. In wet, icy, snow, or gravel driving conditions, 2008 Audi S5 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, 1978 Pontiac Firebird (459 Nm @ 2000 RPM) has 18 more torque (in Nm) than 2008 Audi S5. (441 Nm @ 3500 RPM). This means 1978 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi S5.
Compare all specifications:
| 2008 Audi S5 | 1978 Pontiac Firebird | |
| Make | Audi | Pontiac |
| Model | S5 | Firebird |
| Year Released | 2008 | 1978 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4942 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 354 HP | 200 HP |
| Engine RPM | 6800 RPM | 4000 RPM |
| Torque | 441 Nm | 459 Nm |
| Torque RPM | 3500 RPM | 2000 RPM |
| Engine Bore Size | 84.5 mm | 101.6 mm |
| Engine Stroke Size | 92.8 mm | 76.2 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 249 km/hour | 190 km/hour |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1765 kg | 1585 kg |
| Vehicle Length | 4640 mm | 4880 mm |
| Vehicle Width | 1990 mm | 1870 mm |
| Vehicle Height | 1380 mm | 1290 mm |
| Wheelbase Size | 2760 mm | 2750 mm |
