2006 Cadillac STS vs. 1989 Ford Sierra
To start off, 2006 Cadillac STS is newer by 17 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 4,556 cc (8 cylinders), 2006 Cadillac STS is equipped with a bigger engine. In terms of performance, 2006 Cadillac STS (320 HP @ 6400 RPM) has 246 more horse power than 1989 Ford Sierra. (74 HP @ 5300 RPM). In normal driving conditions, 2006 Cadillac STS should accelerate faster than 1989 Ford Sierra.
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, 2006 Cadillac STS (428 Nm @ 4400 RPM) has 306 more torque (in Nm) than 1989 Ford Sierra. (122 Nm @ 2900 RPM). This means 2006 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1989 Ford Sierra. 2006 Cadillac STS 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. 2006 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Cadillac STS | 1989 Ford Sierra | |
| Make | Cadillac | Ford |
| Model | STS | Sierra |
| Year Released | 2006 | 1989 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4556 cc | 1597 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 320 HP | 74 HP |
| Engine RPM | 6400 RPM | 5300 RPM |
| Torque | 428 Nm | 122 Nm |
| Torque RPM | 4400 RPM | 2900 RPM |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4990 mm | 4500 mm |
| Vehicle Width | 1850 mm | 1680 mm |
| Vehicle Height | 1470 mm | 1400 mm |
| Wheelbase Size | 2960 mm | 2620 mm |
