2007 Jeep Grand Cherokee vs. 2003 Mazda Roadster
To start off, 2007 Jeep Grand Cherokee is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Mazda Roadster. In addition, the cost of maintenance, including insurance, on 2003 Mazda Roadster would be higher. At 5,654 cc (8 cylinders), 2007 Jeep Grand Cherokee is equipped with a bigger engine. In terms of performance, 2007 Jeep Grand Cherokee (322 HP @ 5000 RPM) has 165 more horse power than 2003 Mazda Roadster. (157 HP @ 7000 RPM). In normal driving conditions, 2007 Jeep Grand Cherokee should accelerate faster than 2003 Mazda Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2007 Jeep Grand Cherokee weights approximately 1190 kg more than 2003 Mazda Roadster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Jeep Grand Cherokee is four wheel drive (4WD), it will have significant more traction and grip than 2003 Mazda Roadster. In wet, icy, snow, or gravel driving conditions, 2007 Jeep Grand Cherokee 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, 2007 Jeep Grand Cherokee (500 Nm @ 4000 RPM) has 330 more torque (in Nm) than 2003 Mazda Roadster. (170 Nm @ 5500 RPM). This means 2007 Jeep Grand Cherokee will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda Roadster. 2007 Jeep Grand Cherokee has automatic transmission and 2003 Mazda Roadster has manual transmission. 2003 Mazda Roadster will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Jeep Grand Cherokee will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Jeep Grand Cherokee | 2003 Mazda Roadster | |
| Make | Jeep | Mazda |
| Model | Grand Cherokee | Roadster |
| Year Released | 2007 | 2003 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 5654 cc | 1839 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 322 HP | 157 HP |
| Engine RPM | 5000 RPM | 7000 RPM |
| Torque | 500 Nm | 170 Nm |
| Torque RPM | 4000 RPM | 5500 RPM |
| Engine Bore Size | 99.6 mm | 83 mm |
| Engine Stroke Size | 90.9 mm | 85 mm |
| Engine Compression Ratio | 9.5:1 | 10.5:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2250 kg | 1060 kg |
| Vehicle Length | 4760 mm | 3960 mm |
| Vehicle Width | 1880 mm | 1690 mm |
| Vehicle Height | 1750 mm | 1240 mm |
| Wheelbase Size | 2790 mm | 2370 mm |
| Fuel Tank Capacity | 78 L | 48 L |
