1987 Ford Sierra vs. 1989 Porsche 911
To start off, 1989 Porsche 911 is newer by 2 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 3,600 cc (6 cylinders), 1989 Porsche 911 is equipped with a bigger engine. In terms of performance, 1989 Porsche 911 (247 HP @ 6100 RPM) has 134 more horse power than 1987 Ford Sierra. (113 HP @ 5300 RPM) In normal driving conditions, 1989 Porsche 911 should accelerate faster than 1987 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1989 Porsche 911 weights approximately 245 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, 1989 Porsche 911 (317 Nm @ 4800 RPM) has 137 more torque (in Nm) than 1987 Ford Sierra. (180 Nm @ 3000 RPM). This means 1989 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1987 Ford Sierra.
Compare all specifications:
| 1987 Ford Sierra | 1989 Porsche 911 | |
| Make | Ford | Porsche |
| Model | Sierra | 911 |
| Year Released | 1987 | 1989 |
| Engine Position | Front | Rear |
| Engine Size | 2294 cc | 3600 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 113 HP | 247 HP |
| Engine RPM | 5300 RPM | 6100 RPM |
| Torque | 180 Nm | 317 Nm |
| Torque RPM | 3000 RPM | 4800 RPM |
| Engine Bore Size | 96 mm | 100 mm |
| Engine Stroke Size | 79.5 mm | 76.4 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1090 kg | 1335 kg |
| Vehicle Length | 4400 mm | 4260 mm |
| Vehicle Width | 1680 mm | 1660 mm |
| Vehicle Height | 1370 mm | 1330 mm |
| Wheelbase Size | 2620 mm | 2410 mm |
| Fuel Tank Capacity | 45 L | 77 L |
