1983 Alfa Romeo 33 vs. 1989 Renault 21
To start off, 1989 Renault 21 is newer by 6 year(s). Which means there will be less support and parts availability for 1983 Alfa Romeo 33. In addition, the cost of maintenance, including insurance, on 1983 Alfa Romeo 33 would be higher. At 1,721 cc (4 cylinders), 1989 Renault 21 is equipped with a bigger engine. In terms of performance, 1983 Alfa Romeo 33 (94 HP @ 5750 RPM) has 19 more horse power than 1989 Renault 21. (75 HP @ 5000 RPM). In normal driving conditions, 1983 Alfa Romeo 33 should accelerate faster than 1989 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 1989 Renault 21 weights approximately 108 kg more than 1983 Alfa Romeo 33.
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, 1983 Alfa Romeo 33 (133 Nm @ 4000 RPM) has 4 more torque (in Nm) than 1989 Renault 21. (129 Nm @ 3250 RPM). This means 1983 Alfa Romeo 33 will have an easier job in driving up hills or pulling heavy equipment than 1989 Renault 21.
Compare all specifications:
| 1983 Alfa Romeo 33 | 1989 Renault 21 | |
| Make | Alfa Romeo | Renault |
| Model | 33 | 21 |
| Year Released | 1983 | 1989 |
| Engine Position | Front | Front |
| Engine Size | 1490 cc | 1721 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | boxer | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 94 HP | 75 HP |
| Engine RPM | 5750 RPM | 5000 RPM |
| Torque | 133 Nm | 129 Nm |
| Torque RPM | 4000 RPM | 3250 RPM |
| Engine Compression Ratio | 9.0:1 | 9.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 912 kg | 1020 kg |
| Vehicle Length | 4020 mm | 4650 mm |
| Vehicle Width | 1620 mm | 1720 mm |
| Vehicle Height | 1310 mm | 1430 mm |
| Wheelbase Size | 2520 mm | 2820 mm |
