2006 Cadillac STS vs. 1998 BMW 730
To start off, 2006 Cadillac STS is newer by 8 year(s). Which means there will be less support and parts availability for 1998 BMW 730. In addition, the cost of maintenance, including insurance, on 1998 BMW 730 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 63 more horse power than 1998 BMW 730. (190 HP @ 5300 RPM). In normal driving conditions, 2006 Cadillac STS should accelerate faster than 1998 BMW 730. With that said, vehicle weight also plays an important factor in acceleration. 2006 Cadillac STS weights approximately 37 kg more than 1998 BMW 730. 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 62 more torque (in Nm) than 1998 BMW 730. (280 Nm @ 3950 RPM). This means 2006 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1998 BMW 730.
Compare all specifications:
| 2006 Cadillac STS | 1998 BMW 730 | |
| Make | Cadillac | BMW |
| Model | STS | 730 |
| Year Released | 2006 | 1998 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3563 cc | 2793 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 253 HP | 190 HP |
| Engine RPM | 6500 RPM | 5300 RPM |
| Torque | 342 Nm | 280 Nm |
| Torque RPM | 3200 RPM | 3950 RPM |
| Engine Bore Size | 94 mm | 84.1 mm |
| Engine Stroke Size | 85.6 mm | 84 mm |
| Engine Compression Ratio | 10.2:1 | 10.2:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1782 kg | 1745 kg |
| Vehicle Length | 4990 mm | 5130 mm |
| Vehicle Width | 1850 mm | 1870 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 2960 mm | 2940 mm |
| Fuel Tank Capacity | 66 L | 90 L |
