2002 Ford Focus vs. 1991 Ford Sierra
To start off, 2002 Ford Focus is newer by 11 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 1,991 cc (4 cylinders), 2002 Ford Focus is equipped with a bigger engine. In terms of performance, 2002 Ford Focus (131 HP @ 7000 RPM) has 56 more horse power than 1991 Ford Sierra. (75 HP @ 4500 RPM). In normal driving conditions, 2002 Ford Focus should accelerate faster than 1991 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2002 Ford Focus weights approximately 87 kg more than 1991 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2002 Ford Focus (170 Nm @ 5500 RPM) has 18 more torque (in Nm) than 1991 Ford Sierra. (152 Nm @ 2200 RPM). This means 2002 Ford Focus will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Sierra.
Compare all specifications:
| 2002 Ford Focus | 1991 Ford Sierra | |
| Make | Ford | Ford |
| Model | Focus | Sierra |
| Year Released | 2002 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 1751 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 131 HP | 75 HP |
| Engine RPM | 7000 RPM | 4500 RPM |
| Torque | 170 Nm | 152 Nm |
| Torque RPM | 5500 RPM | 2200 RPM |
| Engine Bore Size | 84.8 mm | 82.5 mm |
| Engine Stroke Size | 88 mm | 82 mm |
| Engine Compression Ratio | 10.2:1 | 21.5:1 |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 1232 kg | 1145 kg |
| Vehicle Length | 4160 mm | 4430 mm |
| Vehicle Width | 1710 mm | 1700 mm |
| Wheelbase Size | 2580 mm | 2620 mm |
| Fuel Tank Capacity | 132 L | 60 L |
