1975 Alfa Romeo Alfetta vs. 1987 Renault 21
To start off, 1987 Renault 21 is newer by 12 year(s). Which means there will be less support and parts availability for 1975 Alfa Romeo Alfetta. In addition, the cost of maintenance, including insurance, on 1975 Alfa Romeo Alfetta would be higher. At 1,721 cc (4 cylinders), 1987 Renault 21 is equipped with a bigger engine. In terms of performance, 1975 Alfa Romeo Alfetta (108 HP @ 5600 RPM) has 33 more horse power than 1987 Renault 21. (75 HP @ 5000 RPM). In normal driving conditions, 1975 Alfa Romeo Alfetta should accelerate faster than 1987 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 1975 Alfa Romeo Alfetta weights approximately 125 kg more than 1987 Renault 21. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1975 Alfa Romeo Alfetta is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1975 Alfa Romeo Alfetta. However, in wet, icy, snow, or gravel driving conditions, 1987 Renault 21, being front wheel drive (FWD), will offer much better control with better grip. 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, 1975 Alfa Romeo Alfetta (142 Nm @ 4300 RPM) has 12 more torque (in Nm) than 1987 Renault 21. (130 Nm @ 3250 RPM). This means 1975 Alfa Romeo Alfetta will have an easier job in driving up hills or pulling heavy equipment than 1987 Renault 21.
Compare all specifications:
| 1975 Alfa Romeo Alfetta | 1987 Renault 21 | |
| Make | Alfa Romeo | Renault |
| Model | Alfetta | 21 |
| Year Released | 1975 | 1987 |
| Engine Position | Front | Front |
| Engine Size | 1570 cc | 1721 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 108 HP | 75 HP |
| Engine RPM | 5600 RPM | 5000 RPM |
| Torque | 142 Nm | 130 Nm |
| Torque RPM | 4300 RPM | 3250 RPM |
| Engine Bore Size | 78 mm | 81 mm |
| Engine Stroke Size | 82 mm | 83.5 mm |
| Top Speed | 175 km/hour | 176 km/hour |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1080 kg | 955 kg |
| Vehicle Length | 4290 mm | 4470 mm |
| Vehicle Width | 1620 mm | 1730 mm |
| Vehicle Height | 1440 mm | 1430 mm |
| Wheelbase Size | 2520 mm | 2550 mm |
| Fuel Tank Capacity | 49 L | 55 L |
