1991 BMW 320 vs. 1987 Ford Sierra
To start off, 1991 BMW 320 is newer by 4 year(s). Which means there will be less support and parts availability for 1987 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1987 Ford Sierra would be higher. At 2,294 cc (4 cylinders), 1987 Ford Sierra is equipped with a bigger engine. In terms of performance, 1991 BMW 320 (149 HP @ 5900 RPM) has 36 more horse power than 1987 Ford Sierra. (113 HP @ 5300 RPM). In normal driving conditions, 1991 BMW 320 should accelerate faster than 1987 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1991 BMW 320 weights approximately 180 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, 1991 BMW 320 (190 Nm @ 4200 RPM) has 10 more torque (in Nm) than 1987 Ford Sierra. (180 Nm @ 3000 RPM). This means 1991 BMW 320 will have an easier job in driving up hills or pulling heavy equipment than 1987 Ford Sierra.
Compare all specifications:
| 1991 BMW 320 | 1987 Ford Sierra | |
| Make | BMW | Ford |
| Model | 320 | Sierra |
| Year Released | 1991 | 1987 |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 2294 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 149 HP | 113 HP |
| Engine RPM | 5900 RPM | 5300 RPM |
| Torque | 190 Nm | 180 Nm |
| Torque RPM | 4200 RPM | 3000 RPM |
| Engine Bore Size | 80 mm | 96 mm |
| Engine Stroke Size | 66 mm | 79.5 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1270 kg | 1090 kg |
| Vehicle Length | 4450 mm | 4400 mm |
| Vehicle Width | 1710 mm | 1680 mm |
| Vehicle Height | 1400 mm | 1370 mm |
| Wheelbase Size | 2710 mm | 2620 mm |
| Fuel Tank Capacity | 65 L | 45 L |
