1987 Buick Regal vs. 2006 Cadillac STS
To start off, 2006 Cadillac STS is newer by 19 year(s). Which means there will be less support and parts availability for 1987 Buick Regal. In addition, the cost of maintenance, including insurance, on 1987 Buick Regal would be higher. At 3,563 cc (6 cylinders), 2006 Cadillac STS is equipped with a bigger engine. In terms of performance, 2006 Cadillac STS (253 HP @ 6500 RPM) has 118 more horse power than 1987 Buick Regal. (135 HP @ 4400 RPM) In normal driving conditions, 2006 Cadillac STS should accelerate faster than 1987 Buick Regal. With that said, vehicle weight also plays an important factor in acceleration. 2006 Cadillac STS weights approximately 442 kg more than 1987 Buick Regal. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Cadillac STS is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2006 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 1987 Buick Regal, being front wheel drive (FWD), will offer much better control with better grip. 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 (342 Nm @ 3200 RPM) has 98 more torque (in Nm) than 1987 Buick Regal. (244 Nm @ 3600 RPM). This means 2006 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1987 Buick Regal.
Compare all specifications:
| 1987 Buick Regal | 2006 Cadillac STS | |
| Make | Buick | Cadillac |
| Model | Regal | STS |
| Year Released | 1987 | 2006 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2843 cc | 3563 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 135 HP | 253 HP |
| Engine RPM | 4400 RPM | 6500 RPM |
| Torque | 244 Nm | 342 Nm |
| Torque RPM | 3600 RPM | 3200 RPM |
| Engine Compression Ratio | 8.8:1 | 10.2:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 190 km/hour | 229 km/hour |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1340 kg | 1782 kg |
| Vehicle Length | 4890 mm | 4990 mm |
| Vehicle Width | 1850 mm | 1850 mm |
| Vehicle Height | 1350 mm | 1470 mm |
| Wheelbase Size | 2740 mm | 2960 mm |
| Fuel Tank Capacity | 62 L | 66 L |
