2009 Cadillac BLS vs. 2003 Mazda Roadster
To start off, 2009 Cadillac BLS 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 2,792 cc, 2009 Cadillac BLS is equipped with a bigger engine. In terms of performance, 2009 Cadillac BLS (247 HP @ 5500 RPM) has 90 more horse power than 2003 Mazda Roadster. (157 HP @ 7000 RPM). In normal driving conditions, 2009 Cadillac BLS should accelerate faster than 2003 Mazda Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac BLS weights approximately 500 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 2003 Mazda Roadster is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2003 Mazda Roadster. However, in wet, icy, snow, or gravel driving conditions, 2009 Cadillac BLS, being front wheel drive (FWD), will offer much better control with better grip. 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 BLS (350 Nm @ 2000 RPM) has 180 more torque (in Nm) than 2003 Mazda Roadster. (170 Nm @ 5500 RPM). This means 2009 Cadillac BLS will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda Roadster. 2009 Cadillac BLS 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 BLS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Cadillac BLS | 2003 Mazda Roadster | |
| Make | Cadillac | Mazda |
| Model | BLS | Roadster |
| Year Released | 2009 | 2003 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2792 cc | 1839 cc |
| Horse Power | 247 HP | 157 HP |
| Engine RPM | 5500 RPM | 7000 RPM |
| Torque | 350 Nm | 170 Nm |
| Torque RPM | 2000 RPM | 5500 RPM |
| Engine Compression Ratio | 9.5:1 | 10.5:1 |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1560 kg | 1060 kg |
| Vehicle Length | 4690 mm | 3960 mm |
| Vehicle Width | 1460 mm | 1690 mm |
| Vehicle Height | 1770 mm | 1240 mm |
| Wheelbase Size | 2680 mm | 2370 mm |
| Fuel Tank Capacity | 58 L | 48 L |
