1979 Austin Allegro vs. 1991 Renault 21
To start off, 1991 Renault 21 is newer by 12 year(s). Which means there will be less support and parts availability for 1979 Austin Allegro. In addition, the cost of maintenance, including insurance, on 1979 Austin Allegro would be higher. At 1,721 cc (4 cylinders), 1991 Renault 21 is equipped with a bigger engine. In terms of performance, 1991 Renault 21 (75 HP @ 5000 RPM) has 31 more horse power than 1979 Austin Allegro. (44 HP @ 5250 RPM) In normal driving conditions, 1991 Renault 21 should accelerate faster than 1979 Austin Allegro. With that said, vehicle weight also plays an important factor in acceleration. 1991 Renault 21 weights approximately 205 kg more than 1979 Austin Allegro. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 1991 Renault 21 (129 Nm @ 3250 RPM) has 55 more torque (in Nm) than 1979 Austin Allegro. (74 Nm @ 2900 RPM). This means 1991 Renault 21 will have an easier job in driving up hills or pulling heavy equipment than 1979 Austin Allegro.
Compare all specifications:
| 1979 Austin Allegro | 1991 Renault 21 | |
| Make | Austin | Renault |
| Model | Allegro | 21 |
| Year Released | 1979 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1098 cc | 1721 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 44 HP | 75 HP |
| Engine RPM | 5250 RPM | 5000 RPM |
| Torque | 74 Nm | 129 Nm |
| Torque RPM | 2900 RPM | 3250 RPM |
| Engine Bore Size | 64.6 mm | 81 mm |
| Engine Stroke Size | 83.7 mm | 83.5 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 815 kg | 1020 kg |
| Vehicle Length | 3200 mm | 4650 mm |
| Vehicle Width | 1620 mm | 1720 mm |
| Vehicle Height | 1400 mm | 1430 mm |
| Wheelbase Size | 2450 mm | 2820 mm |
