2003 Alfa Romeo Spider vs. 2006 Jeep Commander
To start off, 2006 Jeep Commander is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo Spider. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo Spider would be higher. At 5,653 cc (8 cylinders), 2006 Jeep Commander is equipped with a bigger engine. In terms of performance, 2006 Jeep Commander (322 HP @ 5000 RPM) has 174 more horse power than 2003 Alfa Romeo Spider. (148 HP @ 6300 RPM) In normal driving conditions, 2006 Jeep Commander should accelerate faster than 2003 Alfa Romeo Spider. With that said, vehicle weight also plays an important factor in acceleration. 2006 Jeep Commander weights approximately 925 kg more than 2003 Alfa Romeo Spider. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Jeep Commander is four wheel drive (4WD), it will have significant more traction and grip than 2003 Alfa Romeo Spider. In wet, icy, snow, or gravel driving conditions, 2006 Jeep Commander 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, 2006 Jeep Commander (500 Nm @ 4000 RPM) has 319 more torque (in Nm) than 2003 Alfa Romeo Spider. (181 Nm @ 3800 RPM). This means 2006 Jeep Commander will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo Spider. 2006 Jeep Commander has automatic transmission and 2003 Alfa Romeo Spider has manual transmission. 2003 Alfa Romeo Spider will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Jeep Commander will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Alfa Romeo Spider | 2006 Jeep Commander | |
| Make | Alfa Romeo | Jeep |
| Model | Spider | Commander |
| Year Released | 2003 | 2006 |
| Body Type | Roadster | SUV |
| Engine Position | Front | Front |
| Engine Size | 1908 cc | 5653 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 148 HP | 322 HP |
| Engine RPM | 6300 RPM | 5000 RPM |
| Torque | 181 Nm | 500 Nm |
| Torque RPM | 3800 RPM | 4000 RPM |
| Engine Bore Size | 83 mm | 99.5 mm |
| Engine Stroke Size | 91 mm | 90.9 mm |
| Engine Compression Ratio | 18.5:1 | 9.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 8.4 seconds | 7.4 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 7 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1430 kg | 2355 kg |
| Vehicle Length | 4180 mm | 4790 mm |
| Vehicle Width | 1790 mm | 1910 mm |
| Vehicle Height | 1320 mm | 1830 mm |
| Wheelbase Size | 2600 mm | 2790 mm |
| Fuel Consumption Overall | 9.2 L/100km | 15.5 L/100km |
| Fuel Tank Capacity | 69 L | 78 L |
