2009 Cadillac STS vs. 1999 Proton 400
To start off, 2009 Cadillac STS is newer by 10 year(s). Which means there will be less support and parts availability for 1999 Proton 400. In addition, the cost of maintenance, including insurance, on 1999 Proton 400 would be higher. At 3,599 cc (6 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (302 HP @ 6300 RPM) has 228 more horse power than 1999 Proton 400. (74 HP @ 6000 RPM). In normal driving conditions, 2009 Cadillac STS should accelerate faster than 1999 Proton 400. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac STS weights approximately 665 kg more than 1999 Proton 400. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 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 2009 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 1999 Proton 400, 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, 2009 Cadillac STS (369 Nm @ 5200 RPM) has 261 more torque (in Nm) than 1999 Proton 400. (108 Nm @ 3000 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1999 Proton 400. 2009 Cadillac STS has automatic transmission and 1999 Proton 400 has manual transmission. 1999 Proton 400 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 | 1999 Proton 400 | |
| Make | Cadillac | Proton |
| Model | STS | 400 |
| Year Released | 2009 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 3599 cc | 1299 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 302 HP | 74 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 369 Nm | 108 Nm |
| Torque RPM | 5200 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Vehicle Weight | 1635 kg | 970 kg |
| Vehicle Length | 5000 mm | 4370 mm |
| Vehicle Width | 1850 mm | 1700 mm |
| Vehicle Height | 1470 mm | 1390 mm |
| Wheelbase Size | 2960 mm | 2510 mm |
