2003 Infiniti M vs. 2003 Opel Vectra
To start off, both 2003 Infiniti M and 2003 Opel Vectra were released in the same year (2003). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,494 cc (8 cylinders), 2003 Infiniti M is equipped with a bigger engine. In terms of performance, 2003 Infiniti M (340 HP @ 6400 RPM) has 215 more horse power than 2003 Opel Vectra. (125 HP @ 4000 RPM). In normal driving conditions, 2003 Infiniti M should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti M weights approximately 187 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.
Because 2003 Infiniti M 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 2003 Infiniti M. 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 Infiniti M (451 Nm @ 4000 RPM) has 171 more torque (in Nm) than 2003 Opel Vectra. (280 Nm @ 1500 RPM). This means 2003 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Vectra. 2003 Infiniti M 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. 2003 Infiniti M will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Infiniti M | 2003 Opel Vectra | |
| Make | Infiniti | Opel |
| Model | M | Vectra |
| Year Released | 2003 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 4494 cc | 2169 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 340 HP | 125 HP |
| Engine RPM | 6400 RPM | 4000 RPM |
| Torque | 451 Nm | 280 Nm |
| Torque RPM | 4000 RPM | 1500 RPM |
| Engine Bore Size | 93 mm | 84 mm |
| Engine Stroke Size | 82.7 mm | 98 mm |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1747 kg | 1560 kg |
| Vehicle Length | 5020 mm | 4830 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1470 mm | 1510 mm |
