2005 GMC Sierra vs. 2003 Mazda Roadster
To start off, 2005 GMC Sierra is newer by 2 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 5,965 cc (8 cylinders), 2005 GMC Sierra is equipped with a bigger engine. In terms of performance, 2005 GMC Sierra (321 HP @ 5000 RPM) has 203 more horse power than 2003 Mazda Roadster. (118 HP @ 6500 RPM). In normal driving conditions, 2005 GMC Sierra should accelerate faster than 2003 Mazda Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 1240 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 2005 GMC Sierra 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, 2005 GMC Sierra 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, 2005 GMC Sierra (370 Nm @ 4000 RPM) has 230 more torque (in Nm) than 2003 Mazda Roadster. (140 Nm @ 5000 RPM). This means 2005 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda Roadster.
Compare all specifications:
| 2005 GMC Sierra | 2003 Mazda Roadster | |
| Make | GMC | Mazda |
| Model | Sierra | Roadster |
| Year Released | 2005 | 2003 |
| Body Type | Pickup | Convertible |
| Engine Position | Front | Front |
| Engine Size | 5965 cc | 1598 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 321 HP | 118 HP |
| Engine RPM | 5000 RPM | 6500 RPM |
| Torque | 370 Nm | 140 Nm |
| Torque RPM | 4000 RPM | 5000 RPM |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 6 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 2270 kg | 1030 kg |
| Vehicle Length | 5790 mm | 3960 mm |
| Vehicle Width | 2000 mm | 1690 mm |
| Vehicle Height | 1850 mm | 1240 mm |
| Wheelbase Size | 3650 mm | 2270 mm |
| Fuel Tank Capacity | 117 L | 48 L |
