1978 Alfa Romeo Giulietta vs. 1989 Renault 21
To start off, 1989 Renault 21 is newer by 11 year(s). Which means there will be less support and parts availability for 1978 Alfa Romeo Giulietta. In addition, the cost of maintenance, including insurance, on 1978 Alfa Romeo Giulietta would be higher. At 1,721 cc (4 cylinders), 1989 Renault 21 is equipped with a bigger engine. In terms of performance, 1978 Alfa Romeo Giulietta (108 HP @ 5600 RPM) has 33 more horse power than 1989 Renault 21. (75 HP @ 5000 RPM). In normal driving conditions, 1978 Alfa Romeo Giulietta should accelerate faster than 1989 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 1978 Alfa Romeo Giulietta weights approximately 111 kg more than 1989 Renault 21. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1978 Alfa Romeo Giulietta 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 1978 Alfa Romeo Giulietta. However, in wet, icy, snow, or gravel driving conditions, 1989 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, 1978 Alfa Romeo Giulietta (143 Nm @ 4300 RPM) has 14 more torque (in Nm) than 1989 Renault 21. (129 Nm @ 3250 RPM). This means 1978 Alfa Romeo Giulietta will have an easier job in driving up hills or pulling heavy equipment than 1989 Renault 21.
Compare all specifications:
| 1978 Alfa Romeo Giulietta | 1989 Renault 21 | |
| Make | Alfa Romeo | Renault |
| Model | Giulietta | 21 |
| Year Released | 1978 | 1989 |
| Engine Position | Front | Front |
| Engine Size | 1570 cc | 1721 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 108 HP | 75 HP |
| Engine RPM | 5600 RPM | 5000 RPM |
| Torque | 143 Nm | 129 Nm |
| Torque RPM | 4300 RPM | 3250 RPM |
| Engine Bore Size | 78 mm | 81 mm |
| Engine Stroke Size | 82 mm | 83.5 mm |
| Engine Compression Ratio | 9.0:1 | 9.2:1 |
| Fuel Type | Gasoline | Gasoline |
| 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 | 1071 kg | 960 kg |
| Vehicle Length | 4220 mm | 4470 mm |
| Vehicle Width | 1660 mm | 1730 mm |
| Vehicle Height | 1410 mm | 1430 mm |
| Wheelbase Size | 2460 mm | 2550 mm |
| Fuel Tank Capacity | 53 L | 55 L |
