2006 Buick LaCrosse vs. 2003 Opel Vectra
To start off, 2006 Buick LaCrosse 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 Buick LaCrosse is equipped with a bigger engine. In terms of performance, 2006 Buick LaCrosse (240 HP @ 6000 RPM) has 120 more horse power than 2003 Opel Vectra. (120 HP @ 5800 RPM). In normal driving conditions, 2006 Buick LaCrosse should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2006 Buick LaCrosse weights approximately 456 kg more than 2003 Opel Vectra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear 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 Buick LaCrosse (305 Nm @ 2000 RPM) has 135 more torque (in Nm) than 2003 Opel Vectra. (170 Nm @ 3800 RPM). This means 2006 Buick LaCrosse will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Vectra. 2006 Buick LaCrosse has automatic transmission and 2003 Opel Vectra has manual transmission. 2003 Opel Vectra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Buick LaCrosse will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Buick LaCrosse | 2003 Opel Vectra | |
| Make | Buick | Opel |
| Model | LaCrosse | Vectra |
| Year Released | 2006 | 2003 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3556 cc | 1795 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 240 HP | 120 HP |
| Engine RPM | 6000 RPM | 5800 RPM |
| Torque | 305 Nm | 170 Nm |
| Torque RPM | 2000 RPM | 3800 RPM |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1946 kg | 1490 kg |
| Vehicle Length | 5040 mm | 4500 mm |
| Vehicle Width | 1860 mm | 1710 mm |
| Vehicle Height | 1460 mm | 1430 mm |
| Wheelbase Size | 2810 mm | 2640 mm |
| Fuel Consumption Highway | 8.7 L/100km | 6.1 L/100km |
| Fuel Consumption City | 12.4 L/100km | 11 L/100km |
| Fuel Consumption Overall | 10.7 L/100km | 7.9 L/100km |
| Fuel Tank Capacity | 70 L | 60 L |
