1985 Ford Sierra vs. 1998 Porsche 911
To start off, 1998 Porsche 911 is newer by 13 year(s). Which means there will be less support and parts availability for 1985 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1985 Ford Sierra would be higher. At 3,387 cc (6 cylinders), 1998 Porsche 911 is equipped with a bigger engine. In terms of performance, 1998 Porsche 911 (296 HP @ 6800 RPM) has 148 more horse power than 1985 Ford Sierra. (148 HP @ 5700 RPM) In normal driving conditions, 1998 Porsche 911 should accelerate faster than 1985 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1998 Porsche 911 weights approximately 175 kg more than 1985 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, 1998 Porsche 911 (350 Nm @ 4600 RPM) has 130 more torque (in Nm) than 1985 Ford Sierra. (220 Nm @ 3800 RPM). This means 1998 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1985 Ford Sierra.
Compare all specifications:
| 1985 Ford Sierra | 1998 Porsche 911 | |
| Make | Ford | Porsche |
| Model | Sierra | 911 |
| Year Released | 1985 | 1998 |
| Engine Position | Front | Rear |
| Engine Size | 2790 cc | 3387 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 148 HP | 296 HP |
| Engine RPM | 5700 RPM | 6800 RPM |
| Torque | 220 Nm | 350 Nm |
| Torque RPM | 3800 RPM | 4600 RPM |
| Engine Bore Size | 93 mm | 96 mm |
| Engine Stroke Size | 68.5 mm | 78 mm |
| Vehicle Weight | 1205 kg | 1380 kg |
| Vehicle Length | 4400 mm | 4440 mm |
| Vehicle Width | 1680 mm | 1770 mm |
| Vehicle Height | 1370 mm | 1310 mm |
| Wheelbase Size | 2620 mm | 2360 mm |
