1978 Alfa Romeo Alfasud vs. 2009 Audi S5
To start off, 2009 Audi S5 is newer by 31 year(s). Which means there will be less support and parts availability for 1978 Alfa Romeo Alfasud. In addition, the cost of maintenance, including insurance, on 1978 Alfa Romeo Alfasud would be higher. At 4,163 cc (8 cylinders), 2009 Audi S5 is equipped with a bigger engine. In terms of performance, 2009 Audi S5 (354 HP @ 6800 RPM) has 270 more horse power than 1978 Alfa Romeo Alfasud. (84 HP @ 5800 RPM) In normal driving conditions, 2009 Audi S5 should accelerate faster than 1978 Alfa Romeo Alfasud. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi S5 weights approximately 894 kg more than 1978 Alfa Romeo Alfasud. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi S5 is four wheel drive (4WD), it will have significant more traction and grip than 1978 Alfa Romeo Alfasud. In wet, icy, snow, or gravel driving conditions, 2009 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, 2009 Audi S5 (441 Nm @ 3500 RPM) has 321 more torque (in Nm) than 1978 Alfa Romeo Alfasud. (120 Nm @ 3500 RPM). This means 2009 Audi S5 will have an easier job in driving up hills or pulling heavy equipment than 1978 Alfa Romeo Alfasud.
Compare all specifications:
| 1978 Alfa Romeo Alfasud | 2009 Audi S5 | |
| Make | Alfa Romeo | Audi |
| Model | Alfasud | S5 |
| Year Released | 1978 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 1490 cc | 4163 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | boxer | V |
| Horse Power | 84 HP | 354 HP |
| Engine RPM | 5800 RPM | 6800 RPM |
| Torque | 120 Nm | 441 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 84 mm | 84.5 mm |
| Engine Stroke Size | 67.2 mm | 92.8 mm |
| Engine Compression Ratio | 9.0:1 | 12.5:1 |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 876 kg | 1770 kg |
| Vehicle Length | 3930 mm | 4640 mm |
| Vehicle Width | 1620 mm | 1990 mm |
| Vehicle Height | 1380 mm | 1380 mm |
| Wheelbase Size | 2520 mm | 2760 mm |
| Fuel Tank Capacity | 50 L | 63 L |
