1989 Ford Sierra vs. 2009 Saab 9-7X
To start off, 2009 Saab 9-7X is newer by 20 year(s). Which means there will be less support and parts availability for 1989 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1989 Ford Sierra would be higher. At 4,160 cc (6 cylinders), 2009 Saab 9-7X is equipped with a bigger engine. In terms of performance, 2009 Saab 9-7X (291 HP @ 6000 RPM) has 166 more horse power than 1989 Ford Sierra. (125 HP @ 5600 RPM) In normal driving conditions, 2009 Saab 9-7X should accelerate faster than 1989 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2009 Saab 9-7X weights approximately 1013 kg more than 1989 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Saab 9-7X is four wheel drive (4WD), it will have significant more traction and grip than 1989 Ford Sierra. In wet, icy, snow, or gravel driving conditions, 2009 Saab 9-7X will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2009 Saab 9-7X (376 Nm @ 4800 RPM) has 202 more torque (in Nm) than 1989 Ford Sierra. (174 Nm @ 2500 RPM). This means 2009 Saab 9-7X will have an easier job in driving up hills or pulling heavy equipment than 1989 Ford Sierra. 2009 Saab 9-7X has automatic transmission and 1989 Ford Sierra has manual transmission. 1989 Ford Sierra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Saab 9-7X will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1989 Ford Sierra | 2009 Saab 9-7X | |
| Make | Ford | Saab |
| Model | Sierra | 9-7X |
| Year Released | 1989 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 4160 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 125 HP | 291 HP |
| Engine RPM | 5600 RPM | 6000 RPM |
| Torque | 174 Nm | 376 Nm |
| Torque RPM | 2500 RPM | 4800 RPM |
| Engine Compression Ratio | 10.3:1 | 10.3:1 |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1128 kg | 2141 kg |
| Vehicle Length | 4430 mm | 4910 mm |
| Vehicle Width | 1700 mm | 1920 mm |
| Vehicle Height | 1380 mm | 1750 mm |
| Wheelbase Size | 2530 mm | 2880 mm |
| Fuel Tank Capacity | 60 L | 83 L |
