2005 Cadillac STS vs. 1991 Lexus LS
To start off, 2005 Cadillac STS is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Lexus LS. In addition, the cost of maintenance, including insurance, on 1991 Lexus LS would be higher. At 3,969 cc (8 cylinders), 1991 Lexus LS is equipped with a bigger engine. In terms of performance, 2005 Cadillac STS (255 HP @ 6500 RPM) has 13 more horse power than 1991 Lexus LS. (242 HP @ 5400 RPM). In normal driving conditions, 2005 Cadillac STS should accelerate faster than 1991 Lexus LS. With that said, vehicle weight also plays an important factor in acceleration. 1991 Lexus LS weights approximately 19 kg more than 2005 Cadillac STS.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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, 1991 Lexus LS (351 Nm @ 4400 RPM) has 12 more torque (in Nm) than 2005 Cadillac STS. (339 Nm @ 3200 RPM). This means 1991 Lexus LS will have an easier job in driving up hills or pulling heavy equipment than 2005 Cadillac STS.
Compare all specifications:
| 2005 Cadillac STS | 1991 Lexus LS | |
| Make | Cadillac | Lexus |
| Model | STS | LS |
| Year Released | 2005 | 1991 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3556 cc | 3969 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 255 HP | 242 HP |
| Engine RPM | 6500 RPM | 5400 RPM |
| Torque | 339 Nm | 351 Nm |
| Torque RPM | 3200 RPM | 4400 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1796 kg | 1815 kg |
| Vehicle Length | 4990 mm | 5000 mm |
| Vehicle Width | 1850 mm | 1830 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 2890 mm | 2820 mm |
