2009 Cadillac BLS vs. 1991 Rover 400
To start off, 2009 Cadillac BLS is newer by 18 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 2,792 cc (6 cylinders), 2009 Cadillac BLS is equipped with a bigger engine. In terms of performance, 2009 Cadillac BLS (252 HP @ 5500 RPM) has 158 more horse power than 1991 Rover 400. (94 HP @ 6250 RPM). In normal driving conditions, 2009 Cadillac BLS should accelerate faster than 1991 Rover 400. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac BLS weights approximately 615 kg more than 1991 Rover 400. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2009 Cadillac BLS (365 Nm @ 1800 RPM) has 241 more torque (in Nm) than 1991 Rover 400. (124 Nm @ 4000 RPM). This means 2009 Cadillac BLS will have an easier job in driving up hills or pulling heavy equipment than 1991 Rover 400.
Compare all specifications:
| 2009 Cadillac BLS | 1991 Rover 400 | |
| Make | Cadillac | Rover |
| Model | BLS | 400 |
| Year Released | 2009 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2792 cc | 1395 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 252 HP | 94 HP |
| Engine RPM | 5500 RPM | 6250 RPM |
| Torque | 365 Nm | 124 Nm |
| Torque RPM | 1800 RPM | 4000 RPM |
| Engine Bore Size | 89.1 mm | 75 mm |
| Engine Stroke Size | 74.8 mm | 79 mm |
| Engine Compression Ratio | 9.5:1 | 9.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1635 kg | 1020 kg |
| Vehicle Length | 4690 mm | 4370 mm |
| Vehicle Width | 1760 mm | 1690 mm |
| Vehicle Height | 1480 mm | 1410 mm |
| Wheelbase Size | 2680 mm | 2560 mm |
