2008 Cadillac STS vs. 1991 Citroen ZX
To start off, 2008 Cadillac STS is newer by 17 year(s). Which means there will be less support and parts availability for 1991 Citroen ZX. In addition, the cost of maintenance, including insurance, on 1991 Citroen ZX would be higher. At 4,565 cc (8 cylinders), 2008 Cadillac STS is equipped with a bigger engine. In terms of performance, 2008 Cadillac STS (321 HP @ 6400 RPM) has 191 more horse power than 1991 Citroen ZX. (130 HP @ 6000 RPM). In normal driving conditions, 2008 Cadillac STS should accelerate faster than 1991 Citroen ZX. With that said, vehicle weight also plays an important factor in acceleration. 2008 Cadillac STS weights approximately 708 kg more than 1991 Citroen ZX. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 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 2008 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 1991 Citroen ZX, 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, 2008 Cadillac STS (427 Nm @ 4400 RPM) has 267 more torque (in Nm) than 1991 Citroen ZX. (160 Nm @ 4750 RPM). This means 2008 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1991 Citroen ZX. 2008 Cadillac STS has automatic transmission and 1991 Citroen ZX has manual transmission. 1991 Citroen ZX will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Cadillac STS | 1991 Citroen ZX | |
| Make | Cadillac | Citroen |
| Model | STS | ZX |
| Year Released | 2008 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 1905 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 321 HP | 130 HP |
| Engine RPM | 6400 RPM | 6000 RPM |
| Torque | 427 Nm | 160 Nm |
| Torque RPM | 4400 RPM | 4750 RPM |
| Engine Bore Size | 93 mm | 83 mm |
| Engine Stroke Size | 84 mm | 88 mm |
| Engine Compression Ratio | 10.5:1 | 9.6:1 |
| Top Speed | 250 km/hour | 200 km/hour |
| Acceleration 0-100mph | 6.5 seconds | 9.5 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1812 kg | 1104 kg |
| Vehicle Length | 4990 mm | 4090 mm |
| Vehicle Width | 1850 mm | 1710 mm |
| Vehicle Height | 1470 mm | 1410 mm |
| Wheelbase Size | 2960 mm | 2550 mm |
