2004 Fiat Idea vs. 1986 Renault 21
To start off, 2004 Fiat Idea is newer by 18 year(s). Which means there will be less support and parts availability for 1986 Renault 21. In addition, the cost of maintenance, including insurance, on 1986 Renault 21 would be higher. At 1,721 cc (4 cylinders), 1986 Renault 21 is equipped with a bigger engine. In terms of performance, 1986 Renault 21 (75 HP @ 5000 RPM) has 4 more horse power than 2004 Fiat Idea. (71 HP @ 4000 RPM) In normal driving conditions, 1986 Renault 21 should accelerate faster than 2004 Fiat Idea. With that said, vehicle weight also plays an important factor in acceleration. 2004 Fiat Idea weights approximately 195 kg more than 1986 Renault 21.
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, 2004 Fiat Idea (180 Nm @ 1750 RPM) has 51 more torque (in Nm) than 1986 Renault 21. (129 Nm @ 3250 RPM). This means 2004 Fiat Idea will have an easier job in driving up hills or pulling heavy equipment than 1986 Renault 21.
Compare all specifications:
| 2004 Fiat Idea | 1986 Renault 21 | |
| Make | Fiat | Renault |
| Model | Idea | 21 |
| Year Released | 2004 | 1986 |
| Engine Position | Front | Front |
| Engine Size | 1368 cc | 1721 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 71 HP | 75 HP |
| Engine RPM | 4000 RPM | 5000 RPM |
| Torque | 180 Nm | 129 Nm |
| Torque RPM | 1750 RPM | 3250 RPM |
| Engine Compression Ratio | 11.0:1 | 9.2:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1150 kg | 955 kg |
| Vehicle Length | 3940 mm | 4470 mm |
| Vehicle Width | 1710 mm | 1710 mm |
| Vehicle Height | 1670 mm | 1420 mm |
