2004 GMC Sierra vs. 1991 Renault 21
To start off, 2004 GMC Sierra is newer by 13 year(s). Which means there will be less support and parts availability for 1991 Renault 21. In addition, the cost of maintenance, including insurance, on 1991 Renault 21 would be higher. At 5,965 cc (8 cylinders), 2004 GMC Sierra is equipped with a bigger engine. In terms of performance, 2004 GMC Sierra (300 HP) has 225 more horse power than 1991 Renault 21. (75 HP). In normal driving conditions, 2004 GMC Sierra should accelerate faster than 1991 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 2004 GMC Sierra weights approximately 1710 kg more than 1991 Renault 21. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1991 Renault 21. In wet, icy, snow, or gravel driving conditions, 2004 GMC Sierra will offer significantly more control. 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 GMC Sierra (489 Nm) has 360 more torque (in Nm) than 1991 Renault 21. (129 Nm). This means 2004 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1991 Renault 21.
Compare all specifications:
| 2004 GMC Sierra | 1991 Renault 21 | |
| Make | GMC | Renault |
| Model | Sierra | 21 |
| Year Released | 2004 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 5965 cc | 1721 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 300 HP | 75 HP |
| Torque | 489 Nm | 129 Nm |
| Engine Bore Size | 102 mm | 81 mm |
| Engine Stroke Size | 92 mm | 83.5 mm |
| Drive Type | 4WD | Front |
| Vehicle Weight | 2730 kg | 1020 kg |
| Vehicle Length | 6030 mm | 4650 mm |
| Vehicle Width | 2030 mm | 1720 mm |
| Vehicle Height | 1940 mm | 1430 mm |
| Wheelbase Size | 4250 mm | 2820 mm |
