1985 Alfa Romeo 33 vs. 1986 Renault 21
To start off, 1986 Renault 21 is newer by 1 year(s). Which means there will be less support and parts availability for 1985 Alfa Romeo 33. In addition, the cost of maintenance, including insurance, on 1985 Alfa Romeo 33 would be higher. At 2,067 cc (4 cylinders), 1986 Renault 21 is equipped with a bigger engine. In terms of performance, 1985 Alfa Romeo 33 (106 HP @ 6000 RPM) has 19 more horse power than 1986 Renault 21. (87 HP @ 4250 RPM). In normal driving conditions, 1985 Alfa Romeo 33 should accelerate faster than 1986 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 1986 Renault 21 weights approximately 235 kg more than 1985 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, 1986 Renault 21 (185 Nm @ 2000 RPM) has 50 more torque (in Nm) than 1985 Alfa Romeo 33. (135 Nm @ 4000 RPM). This means 1986 Renault 21 will have an easier job in driving up hills or pulling heavy equipment than 1985 Alfa Romeo 33.
Compare all specifications:
| 1985 Alfa Romeo 33 | 1986 Renault 21 | |
| Make | Alfa Romeo | Renault |
| Model | 33 | 21 |
| Year Released | 1985 | 1986 |
| Engine Position | Front | Front |
| Engine Size | 1489 cc | 2067 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | boxer | in-line |
| Horse Power | 106 HP | 87 HP |
| Engine RPM | 6000 RPM | 4250 RPM |
| Torque | 135 Nm | 185 Nm |
| Torque RPM | 4000 RPM | 2000 RPM |
| Engine Bore Size | 84 mm | 86 mm |
| Engine Stroke Size | 67.2 mm | 89 mm |
| Engine Compression Ratio | 9.4:1 | 21.0:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 900 kg | 1135 kg |
| Vehicle Length | 4020 mm | 4540 mm |
| Vehicle Width | 1620 mm | 1720 mm |
| Vehicle Height | 1310 mm | 1430 mm |
| Wheelbase Size | 2460 mm | 2670 mm |
