2003 BMW 325 vs. 2003 Opel Signum
To start off, both 2003 BMW 325 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 3,173 cc (6 cylinders), 2003 Opel Signum is equipped with a bigger engine. In terms of performance, 2003 Opel Signum (207 HP @ 6200 RPM) has 15 more horse power than 2003 BMW 325. (192 HP @ 6000 RPM) In normal driving conditions, 2003 Opel Signum should accelerate faster than 2003 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 133 kg more than 2003 BMW 325. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2003 Opel Signum (300 Nm @ 4000 RPM) has 55 more torque (in Nm) than 2003 BMW 325. (245 Nm @ 3500 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 325. 2003 Opel Signum has automatic transmission and 2003 BMW 325 has manual transmission. 2003 BMW 325 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 325 | 2003 Opel Signum | |
| Make | BMW | Opel |
| Model | 325 | Signum |
| Year Released | 2003 | 2003 |
| Body Type | Hatchback | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 3173 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 192 HP | 207 HP |
| Engine RPM | 6000 RPM | 6200 RPM |
| Torque | 245 Nm | 300 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 84.1 mm | 87.5 mm |
| Engine Stroke Size | 75 mm | 88 mm |
| Engine Compression Ratio | 10.5:1 | 10.0:1 |
| Acceleration 0-100mph | 7.1 seconds | 8.5 seconds |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1480 kg | 1613 kg |
| Vehicle Length | 4270 mm | 4640 mm |
| Vehicle Width | 1760 mm | 1800 mm |
| Vehicle Height | 1410 mm | 1470 mm |
| Wheelbase Size | 2730 mm | 2840 mm |
| Fuel Consumption | 7 L/100km | 7.8 L/100km |
| Fuel Consumption City | 12.3 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 8.9 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 63 L | 60 L |
