2007 Alpina D3 vs. 2006 Cadillac STS
To start off, 2007 Alpina D3 is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2006 Cadillac STS would be higher. At 3,563 cc (6 cylinders), 2006 Cadillac STS is equipped with a bigger engine. In terms of performance, 2007 Alpina D3 (301 HP @ 6300 RPM) has 48 more horse power than 2006 Cadillac STS. (253 HP @ 6500 RPM). In normal driving conditions, 2007 Alpina D3 should accelerate faster than 2006 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2006 Cadillac STS weights approximately 257 kg more than 2007 Alpina D3.
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, 2007 Alpina D3 (362 Nm @ 4800 RPM) has 20 more torque (in Nm) than 2006 Cadillac STS. (342 Nm @ 3200 RPM). This means 2007 Alpina D3 will have an easier job in driving up hills or pulling heavy equipment than 2006 Cadillac STS.
Compare all specifications:
| 2007 Alpina D3 | 2006 Cadillac STS | |
| Make | Alpina | Cadillac |
| Model | D3 | STS |
| Year Released | 2007 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 3347 cc | 3563 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 301 HP | 253 HP |
| Engine RPM | 6300 RPM | 6500 RPM |
| Torque | 362 Nm | 342 Nm |
| Torque RPM | 4800 RPM | 3200 RPM |
| Engine Bore Size | 87 mm | 94 mm |
| Engine Stroke Size | 93.9 mm | 85.6 mm |
| Engine Compression Ratio | 10.0:1 | 10.2:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 266 km/hour | 229 km/hour |
| Acceleration 0-100mph | 5.8 seconds | 7.4 seconds |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1525 kg | 1782 kg |
| Vehicle Length | 4480 mm | 4990 mm |
| Vehicle Width | 1750 mm | 1850 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2730 mm | 2960 mm |
| Fuel Consumption Overall | 11.3 L/100km | 12.4 L/100km |
| Fuel Tank Capacity | 63 L | 66 L |
