2009 Cadillac STS vs. 1991 Chevrolet SS
To start off, 2009 Cadillac STS is newer by 18 year(s). Which means there will be less support and parts availability for 1991 Chevrolet SS. In addition, the cost of maintenance, including insurance, on 1991 Chevrolet SS would be higher. At 5,735 cc (8 cylinders), 1991 Chevrolet SS is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (302 HP) has 57 more horse power than 1991 Chevrolet SS. (245 HP). In normal driving conditions, 2009 Cadillac STS should accelerate faster than 1991 Chevrolet SS.
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 Chevrolet SS (468 Nm) has 99 more torque (in Nm) than 2009 Cadillac STS. (369 Nm). This means 1991 Chevrolet SS will have an easier job in driving up hills or pulling heavy equipment than 2009 Cadillac STS. 2009 Cadillac STS has automatic transmission and 1991 Chevrolet SS has manual transmission. 1991 Chevrolet SS will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Cadillac STS | 1991 Chevrolet SS | |
| Make | Cadillac | Chevrolet |
| Model | STS | SS |
| Year Released | 2009 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 3599 cc | 5735 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 302 HP | 245 HP |
| Torque | 369 Nm | 468 Nm |
| Engine Compression Ratio | 11.3:1 | 9.3:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Length | 5000 mm | 4940 mm |
| Vehicle Width | 1850 mm | 1650 mm |
| Vehicle Height | 1470 mm | 1560 mm |
| Wheelbase Size | 2960 mm | 3000 mm |
