2006 Cadillac CTS vs. 2003 Opel Vectra
To start off, 2006 Cadillac CTS is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2003 Opel Vectra would be higher. At 3,556 cc (6 cylinders), 2006 Cadillac CTS is equipped with a bigger engine. In terms of performance, 2006 Cadillac CTS (255 HP @ 6200 RPM) has 82 more horse power than 2003 Opel Vectra. (173 HP @ 4000 RPM). In normal driving conditions, 2006 Cadillac CTS should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Vectra weights approximately 13 kg more than 2006 Cadillac CTS.
Because 2006 Cadillac CTS 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 2006 Cadillac CTS. However, in wet, icy, snow, or gravel driving conditions, 2003 Opel Vectra, 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, 2003 Opel Vectra (370 Nm @ 1900 RPM) has 27 more torque (in Nm) than 2006 Cadillac CTS. (343 Nm @ 3100 RPM). This means 2003 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2006 Cadillac CTS.
Compare all specifications:
| 2006 Cadillac CTS | 2003 Opel Vectra | |
| Make | Cadillac | Opel |
| Model | CTS | Vectra |
| Year Released | 2006 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 3556 cc | 2957 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 255 HP | 173 HP |
| Engine RPM | 6200 RPM | 4000 RPM |
| Torque | 343 Nm | 370 Nm |
| Torque RPM | 3100 RPM | 1900 RPM |
| Engine Bore Size | 94 mm | 87.5 mm |
| Engine Stroke Size | 86 mm | 82 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1592 kg | 1605 kg |
| Vehicle Length | 4840 mm | 4600 mm |
| Vehicle Width | 1800 mm | 1770 mm |
| Vehicle Height | 1450 mm | 1470 mm |
| Wheelbase Size | 2890 mm | 2740 mm |
| Fuel Consumption Overall | 11.8 L/100km | 7 L/100km |
| Fuel Tank Capacity | 64 L | 60 L |
