1991 Ford Sierra vs. 2004 Proton 400
To start off, 2004 Proton 400 is newer by 13 year(s). Which means there will be less support and parts availability for 1991 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1991 Ford Sierra would be higher. At 1,751 cc (4 cylinders), 1991 Ford Sierra is equipped with a bigger engine. In terms of performance, 1991 Ford Sierra (75 HP @ 4500 RPM) has 1 more horse power than 2004 Proton 400. (74 HP @ 6000 RPM). In normal driving conditions, 1991 Ford Sierra should accelerate faster than 2004 Proton 400. With that said, vehicle weight also plays an important factor in acceleration. 1991 Ford Sierra weights approximately 155 kg more than 2004 Proton 400. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1991 Ford Sierra (152 Nm @ 2200 RPM) has 43 more torque (in Nm) than 2004 Proton 400. (109 Nm @ 3000 RPM). This means 1991 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 2004 Proton 400.
Compare all specifications:
| 1991 Ford Sierra | 2004 Proton 400 | |
| Make | Ford | Proton |
| Model | Sierra | 400 |
| Year Released | 1991 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 1751 cc | 1299 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 75 HP | 74 HP |
| Engine RPM | 4500 RPM | 6000 RPM |
| Torque | 152 Nm | 109 Nm |
| Torque RPM | 2200 RPM | 3000 RPM |
| Fuel Type | Diesel | Gasoline |
| Vehicle Weight | 1145 kg | 990 kg |
| Vehicle Length | 4430 mm | 4280 mm |
| Vehicle Width | 1700 mm | 1700 mm |
| Vehicle Height | 1370 mm | 1390 mm |
| Wheelbase Size | 2620 mm | 2510 mm |
