2007 BMW X3 vs. 2003 Dodge Viper
To start off, 2007 BMW X3 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Dodge Viper. In addition, the cost of maintenance, including insurance, on 2003 Dodge Viper would be higher. At 8,195 cc (10 cylinders), 2003 Dodge Viper is equipped with a bigger engine. In terms of performance, 2003 Dodge Viper (500 HP @ 5600 RPM) has 217 more horse power than 2007 BMW X3. (283 HP @ 4400 RPM) In normal driving conditions, 2003 Dodge Viper should accelerate faster than 2007 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X3 weights approximately 427 kg more than 2003 Dodge Viper.
Because 2007 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Dodge Viper. In wet, icy, snow, or gravel driving conditions, 2007 BMW X3 will offer significantly more control. 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 Dodge Viper (712 Nm @ 4200 RPM) has 132 more torque (in Nm) than 2007 BMW X3. (580 Nm @ 1750 RPM). This means 2003 Dodge Viper will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW X3. 2007 BMW X3 has automatic transmission and 2003 Dodge Viper has manual transmission. 2003 Dodge Viper will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW X3 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW X3 | 2003 Dodge Viper | |
| Make | BMW | Dodge |
| Model | X3 | Viper |
| Year Released | 2007 | 2003 |
| Body Type | SUV | Roadster |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 8195 cc |
| Engine Cylinders | 6 cylinders | 10 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 283 HP | 500 HP |
| Engine RPM | 4400 RPM | 5600 RPM |
| Torque | 580 Nm | 712 Nm |
| Torque RPM | 1750 RPM | 4200 RPM |
| Engine Bore Size | 84 mm | 102.4 mm |
| Engine Stroke Size | 88 mm | 100.6 mm |
| Engine Compression Ratio | 17.0:1 | 9.6:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1950 kg | 1523 kg |
| Vehicle Length | 4570 mm | 4470 mm |
| Vehicle Width | 1860 mm | 1920 mm |
| Vehicle Height | 1680 mm | 1220 mm |
| Wheelbase Size | 2800 mm | 2520 mm |
| Fuel Tank Capacity | 67 L | 70 L |
