1987 Buick Regal vs. 2007 Cadillac STS
To start off, 2007 Cadillac STS is newer by 20 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 4,565 cc (8 cylinders), 2007 Cadillac STS is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (320 HP @ 6400 RPM) has 185 more horse power than 1987 Buick Regal. (135 HP @ 4400 RPM) In normal driving conditions, 2007 Cadillac STS should accelerate faster than 1987 Buick Regal. With that said, vehicle weight also plays an important factor in acceleration. 2007 Cadillac STS weights approximately 226 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 2007 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 2007 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, 2007 Cadillac STS (427 Nm @ 4400 RPM) has 183 more torque (in Nm) than 1987 Buick Regal. (244 Nm @ 3600 RPM). This means 2007 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 | 2007 Cadillac STS | |
| Make | Buick | Cadillac |
| Model | Regal | STS |
| Year Released | 1987 | 2007 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2843 cc | 4565 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 135 HP | 320 HP |
| Engine RPM | 4400 RPM | 6400 RPM |
| Torque | 244 Nm | 427 Nm |
| Torque RPM | 3600 RPM | 4400 RPM |
| Engine Compression Ratio | 8.8:1 | 10.5:1 |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1340 kg | 1566 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 | 64 L |
