1997 Ford Mustang vs. 1991 Ford Sierra
To start off, 1997 Ford Mustang is newer by 6 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 5,400 cc (8 cylinders), 1997 Ford Mustang is equipped with a bigger engine. In terms of performance, 1997 Ford Mustang (590 HP @ 5500 RPM) has 515 more horse power than 1991 Ford Sierra. (75 HP @ 4500 RPM). In normal driving conditions, 1997 Ford Mustang should accelerate faster than 1991 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1991 Ford Sierra weights approximately 215 kg more than 1997 Ford Mustang.
Let's talk about torque, 1997 Ford Mustang (728 Nm) has 576 more torque (in Nm) than 1991 Ford Sierra. (152 Nm). This means 1997 Ford Mustang will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Sierra.
Compare all specifications:
| 1997 Ford Mustang | 1991 Ford Sierra | |
| Make | Ford | Ford |
| Model | Mustang | Sierra |
| Year Released | 1997 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 5400 cc | 1751 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 590 HP | 75 HP |
| Engine RPM | 5500 RPM | 4500 RPM |
| Torque | 728 Nm | 152 Nm |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 930 kg | 1145 kg |
| Vehicle Length | 4620 mm | 4430 mm |
| Vehicle Width | 1830 mm | 1700 mm |
| Wheelbase Size | 2580 mm | 2620 mm |
