2009 Cadillac SRX vs. 2003 Mazda Roadster
To start off, 2009 Cadillac SRX is newer by 6 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 4,565 cc (8 cylinders), 2009 Cadillac SRX is equipped with a bigger engine. In terms of performance, 2009 Cadillac SRX (321 HP @ 6400 RPM) has 164 more horse power than 2003 Mazda Roadster. (157 HP @ 7000 RPM). In normal driving conditions, 2009 Cadillac SRX should accelerate faster than 2003 Mazda Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac SRX weights approximately 1066 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 2009 Cadillac SRX 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, 2009 Cadillac SRX 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, 2009 Cadillac SRX (427 Nm @ 4400 RPM) has 257 more torque (in Nm) than 2003 Mazda Roadster. (170 Nm @ 5500 RPM). This means 2009 Cadillac SRX will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda Roadster. 2009 Cadillac SRX 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. 2009 Cadillac SRX will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Cadillac SRX | 2003 Mazda Roadster | |
| Make | Cadillac | Mazda |
| Model | SRX | Roadster |
| Year Released | 2009 | 2003 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 1839 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 321 HP | 157 HP |
| Engine RPM | 6400 RPM | 7000 RPM |
| Torque | 427 Nm | 170 Nm |
| Torque RPM | 4400 RPM | 5500 RPM |
| Engine Bore Size | 93 mm | 83 mm |
| Engine Stroke Size | 84 mm | 85 mm |
| Engine Compression Ratio | 10.5:1 | 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 | 2126 kg | 1060 kg |
| Vehicle Length | 4960 mm | 3960 mm |
| Vehicle Width | 1850 mm | 1690 mm |
| Vehicle Height | 1730 mm | 1240 mm |
| Wheelbase Size | 2960 mm | 2370 mm |
| Fuel Tank Capacity | 76 L | 48 L |
