1991 Rover 400 vs. 2011 Saab 9-4X
To start off, 2011 Saab 9-4X is newer by 20 year(s). Which means there will be less support and parts availability for 1991 Rover 400. In addition, the cost of maintenance, including insurance, on 1991 Rover 400 would be higher. At 3,000 cc (6 cylinders), 2011 Saab 9-4X is equipped with a bigger engine. In terms of performance, 2011 Saab 9-4X (265 HP @ 6950 RPM) has 171 more horse power than 1991 Rover 400. (94 HP @ 6250 RPM) In normal driving conditions, 2011 Saab 9-4X should accelerate faster than 1991 Rover 400.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2011 Saab 9-4X (302 Nm @ 5100 RPM) has 178 more torque (in Nm) than 1991 Rover 400. (124 Nm @ 4000 RPM). This means 2011 Saab 9-4X will have an easier job in driving up hills or pulling heavy equipment than 1991 Rover 400. 2011 Saab 9-4X has automatic transmission and 1991 Rover 400 has manual transmission. 1991 Rover 400 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2011 Saab 9-4X will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Rover 400 | 2011 Saab 9-4X | |
| Make | Rover | Saab |
| Model | 400 | 9-4X |
| Year Released | 1991 | 2011 |
| Engine Position | Front | Front |
| Engine Size | 1395 cc | 3000 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 94 HP | 265 HP |
| Engine RPM | 6250 RPM | 6950 RPM |
| Torque | 124 Nm | 302 Nm |
| Torque RPM | 4000 RPM | 5100 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4370 mm | 4829 mm |
| Vehicle Width | 1690 mm | 1905 mm |
| Vehicle Height | 1410 mm | 1679 mm |
| Wheelbase Size | 2560 mm | 2807 mm |
