2003 BMW 320 vs. 2003 Opel Signum
To start off, both 2003 BMW 320 and 2003 Opel Signum were released in the same year (2003). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 2,958 cc (6 cylinders), 2003 Opel Signum is equipped with a bigger engine. In terms of performance, 2003 Opel Signum (174 HP @ 4000 RPM) has 32 more horse power than 2003 BMW 320. (142 HP @ 6100 RPM) In normal driving conditions, 2003 Opel Signum should accelerate faster than 2003 BMW 320. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 385 kg more than 2003 BMW 320. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 BMW 320 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 BMW 320. However, in wet, icy, snow, or gravel driving conditions, 2003 Opel Signum, 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 Signum (370 Nm @ 1900 RPM) has 170 more torque (in Nm) than 2003 BMW 320. (200 Nm @ 3750 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 320. 2003 Opel Signum has automatic transmission and 2003 BMW 320 has manual transmission. 2003 BMW 320 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Opel Signum will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 BMW 320 | 2003 Opel Signum | |
| Make | BMW | Opel |
| Model | 320 | Signum |
| Year Released | 2003 | 2003 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 142 HP | 174 HP |
| Engine RPM | 6100 RPM | 4000 RPM |
| Torque | 200 Nm | 370 Nm |
| Torque RPM | 3750 RPM | 1900 RPM |
| Engine Bore Size | 84 mm | 87.6 mm |
| Engine Stroke Size | 90 mm | 82 mm |
| Engine Compression Ratio | 10.0:1 | 18.5:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1310 kg | 1695 kg |
| Vehicle Length | 4480 mm | 4640 mm |
| Vehicle Width | 1770 mm | 1800 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2710 mm | 2710 mm |
| Fuel Tank Capacity | 67 L | 60 L |
