2007 Alpina D3 vs. 2009 Cadillac STS
To start off, 2009 Cadillac STS is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Alpina D3. In addition, the cost of maintenance, including insurance, on 2007 Alpina D3 would be higher. At 4,564 cc (8 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (320 HP @ 6400 RPM) has 19 more horse power than 2007 Alpina D3. (301 HP @ 6300 RPM) In normal driving conditions, 2009 Cadillac STS should accelerate faster than 2007 Alpina D3. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac STS weights approximately 110 kg more than 2007 Alpina D3. 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, 2009 Cadillac STS (427 Nm @ 4400 RPM) has 65 more torque (in Nm) than 2007 Alpina D3. (362 Nm @ 4800 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2007 Alpina D3.
Compare all specifications:
| 2007 Alpina D3 | 2009 Cadillac STS | |
| Make | Alpina | Cadillac |
| Model | D3 | STS |
| Year Released | 2007 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 3347 cc | 4564 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 301 HP | 320 HP |
| Engine RPM | 6300 RPM | 6400 RPM |
| Torque | 362 Nm | 427 Nm |
| Torque RPM | 4800 RPM | 4400 RPM |
| Engine Compression Ratio | 10.0:1 | 3.7:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1525 kg | 1635 kg |
| Vehicle Length | 4480 mm | 5000 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 | 13.1 L/100km |
| Fuel Tank Capacity | 63 L | 64 L |
