2006 Cadillac STS vs. 1991 Porsche 968
To start off, 2006 Cadillac STS is newer by 15 year(s). Which means there will be less support and parts availability for 1991 Porsche 968. In addition, the cost of maintenance, including insurance, on 1991 Porsche 968 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 13 more horse power than 1991 Porsche 968. (240 HP @ 6200 RPM). In normal driving conditions, 2006 Cadillac STS should accelerate faster than 1991 Porsche 968. With that said, vehicle weight also plays an important factor in acceleration. 2006 Cadillac STS weights approximately 382 kg more than 1991 Porsche 968. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 (342 Nm @ 3200 RPM) has 37 more torque (in Nm) than 1991 Porsche 968. (305 Nm @ 4100 RPM). This means 2006 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1991 Porsche 968. 2006 Cadillac STS has automatic transmission and 1991 Porsche 968 has manual transmission. 1991 Porsche 968 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 | 1991 Porsche 968 | |
| Make | Cadillac | Porsche |
| Model | STS | 968 |
| Year Released | 2006 | 1991 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3563 cc | 2989 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 253 HP | 240 HP |
| Engine RPM | 6500 RPM | 6200 RPM |
| Torque | 342 Nm | 305 Nm |
| Torque RPM | 3200 RPM | 4100 RPM |
| Engine Bore Size | 94 mm | 104 mm |
| Engine Stroke Size | 85.6 mm | 88 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1782 kg | 1400 kg |
| Vehicle Length | 4990 mm | 4330 mm |
| Vehicle Width | 1850 mm | 1740 mm |
| Vehicle Height | 1470 mm | 1270 mm |
| Wheelbase Size | 2960 mm | 2510 mm |
| Fuel Consumption Overall | 12.4 L/100km | 9.3 L/100km |
| Fuel Tank Capacity | 66 L | 92 L |
