2005 Alfa Romeo 156 vs. 1991 Audi S2
To start off, 2005 Alfa Romeo 156 is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Audi S2. In addition, the cost of maintenance, including insurance, on 1991 Audi S2 would be higher. At 2,490 cc (6 cylinders), 2005 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 1991 Audi S2 (216 HP @ 5900 RPM) has 31 more horse power than 2005 Alfa Romeo 156. (185 HP @ 5000 RPM) In normal driving conditions, 1991 Audi S2 should accelerate faster than 2005 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2005 Alfa Romeo 156 weights approximately 70 kg more than 1991 Audi S2.
Because 1991 Audi S2 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Alfa Romeo 156. In wet, icy, snow, or gravel driving conditions, 1991 Audi S2 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, 1991 Audi S2 (309 Nm @ 1950 RPM) has 88 more torque (in Nm) than 2005 Alfa Romeo 156. (221 Nm @ 5000 RPM). This means 1991 Audi S2 will have an easier job in driving up hills or pulling heavy equipment than 2005 Alfa Romeo 156.
Compare all specifications:
| 2005 Alfa Romeo 156 | 1991 Audi S2 | |
| Make | Alfa Romeo | Audi |
| Model | 156 | S2 |
| Year Released | 2005 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2490 cc | 2226 cc |
| Engine Cylinders | 6 cylinders | 5 cylinders |
| Engine Type | V | in-line |
| Horse Power | 185 HP | 216 HP |
| Engine RPM | 5000 RPM | 5900 RPM |
| Torque | 221 Nm | 309 Nm |
| Torque RPM | 5000 RPM | 1950 RPM |
| Engine Bore Size | 88 mm | 81.1 mm |
| Engine Stroke Size | 68.3 mm | 86.4 mm |
| Engine Compression Ratio | 10.3:1 | 9.3:1 |
| Acceleration 0-100mph | 8.4 seconds | 6.1 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1490 kg | 1420 kg |
| Vehicle Length | 4730 mm | 4410 mm |
| Vehicle Width | 1820 mm | 1720 mm |
| Vehicle Height | 1420 mm | 1380 mm |
| Wheelbase Size | 2600 mm | 2560 mm |
| Fuel Consumption Overall | 11.8 L/100km | 8.3 L/100km |
| Fuel Tank Capacity | 72 L | 70 L |
