1987 Ford Sierra vs. 1981 Ford Mustang
To start off, 1987 Ford Sierra is newer by 6 year(s). Which means there will be less support and parts availability for 1981 Ford Mustang. In addition, the cost of maintenance, including insurance, on 1981 Ford Mustang would be higher. At 4,942 cc (8 cylinders), 1981 Ford Mustang is equipped with a bigger engine. In terms of performance, 1981 Ford Mustang (173 HP @ 3800 RPM) has 61 more horse power than 1987 Ford Sierra. (112 HP @ 5300 RPM) In normal driving conditions, 1981 Ford Mustang should accelerate faster than 1987 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1981 Ford Mustang weights approximately 220 kg more than 1987 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, 1981 Ford Mustang (332 Nm @ 2000 RPM) has 152 more torque (in Nm) than 1987 Ford Sierra. (180 Nm @ 3000 RPM). This means 1981 Ford Mustang will have an easier job in driving up hills or pulling heavy equipment than 1987 Ford Sierra.
Compare all specifications:
| 1987 Ford Sierra | 1981 Ford Mustang | |
| Make | Ford | Ford |
| Model | Sierra | Mustang |
| Year Released | 1987 | 1981 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2292 cc | 4942 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 112 HP | 173 HP |
| Engine RPM | 5300 RPM | 3800 RPM |
| Torque | 180 Nm | 332 Nm |
| Torque RPM | 3000 RPM | 2000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1135 kg | 1355 kg |
| Vehicle Length | 4500 mm | 4560 mm |
| Vehicle Width | 1680 mm | 1720 mm |
| Vehicle Height | 1400 mm | 1320 mm |
| Wheelbase Size | 2620 mm | 2560 mm |
