2006 Alfa Romeo 156 vs. 1987 Renault 21
To start off, 2006 Alfa Romeo 156 is newer by 19 year(s). Which means there will be less support and parts availability for 1987 Renault 21. In addition, the cost of maintenance, including insurance, on 1987 Renault 21 would be higher. At 1,995 cc (4 cylinders), 1987 Renault 21 is equipped with a bigger engine. In terms of performance, 1987 Renault 21 (175 HP @ 5200 RPM) has 61 more horse power than 2006 Alfa Romeo 156. (114 HP @ 4000 RPM) In normal driving conditions, 1987 Renault 21 should accelerate faster than 2006 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2006 Alfa Romeo 156 weights approximately 118 kg more than 1987 Renault 21.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2006 Alfa Romeo 156 (275 Nm @ 2000 RPM) has 5 more torque (in Nm) than 1987 Renault 21. (270 Nm @ 3000 RPM). This means 2006 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 1987 Renault 21.
Compare all specifications:
| 2006 Alfa Romeo 156 | 1987 Renault 21 | |
| Make | Alfa Romeo | Renault |
| Model | 156 | 21 |
| Year Released | 2006 | 1987 |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 1995 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 114 HP | 175 HP |
| Engine RPM | 4000 RPM | 5200 RPM |
| Torque | 275 Nm | 270 Nm |
| Torque RPM | 2000 RPM | 3000 RPM |
| Engine Bore Size | 82 mm | 88 mm |
| Engine Stroke Size | 90.4 mm | 82 mm |
| Engine Compression Ratio | 18.4:1 | 8.0:1 |
| Top Speed | 191 km/hour | 227 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1308 kg | 1190 kg |
| Vehicle Length | 4440 mm | 4650 mm |
| Vehicle Width | 1750 mm | 1720 mm |
| Vehicle Height | 1440 mm | 1380 mm |
| Wheelbase Size | 2600 mm | 2610 mm |
