1990 Pontiac Grand Am vs. 1987 Renault 21
To start off, 1990 Pontiac Grand Am is newer by 3 year(s). Which means there will be less support and parts availability for 1987 Renault 21. In addition, the cost of maintenance, including insurance, on 1987 Renault 21 would be higher. At 1,996 cc (4 cylinders), 1990 Pontiac Grand Am is equipped with a bigger engine. In terms of performance, 1990 Pontiac Grand Am (163 HP @ 5600 RPM) has 99 more horse power than 1987 Renault 21. (64 HP @ 4500 RPM). In normal driving conditions, 1990 Pontiac Grand Am should accelerate faster than 1987 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 1990 Pontiac Grand Am weights approximately 130 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.
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, 1990 Pontiac Grand Am (237 Nm @ 4000 RPM) has 119 more torque (in Nm) than 1987 Renault 21. (118 Nm @ 2250 RPM). This means 1990 Pontiac Grand Am will have an easier job in driving up hills or pulling heavy equipment than 1987 Renault 21.
Compare all specifications:
| 1990 Pontiac Grand Am | 1987 Renault 21 | |
| Make | Pontiac | Renault |
| Model | Grand Am | 21 |
| Year Released | 1990 | 1987 |
| Engine Position | Front | Front |
| Engine Size | 1996 cc | 1869 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 163 HP | 64 HP |
| Engine RPM | 5600 RPM | 4500 RPM |
| Torque | 237 Nm | 118 Nm |
| Torque RPM | 4000 RPM | 2250 RPM |
| Engine Bore Size | 86 mm | 80 mm |
| Engine Stroke Size | 86 mm | 93 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1235 kg | 1105 kg |
| Vehicle Length | 4520 mm | 4650 mm |
| Vehicle Width | 1710 mm | 1720 mm |
| Vehicle Height | 1340 mm | 1430 mm |
| Wheelbase Size | 2630 mm | 2820 mm |
