2005 Cadillac DeVille vs. 2008 Mazda RX-8
To start off, 2008 Mazda RX-8 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Cadillac DeVille. In addition, the cost of maintenance, including insurance, on 2005 Cadillac DeVille would be higher. At 4,570 cc (8 cylinders), 2005 Cadillac DeVille is equipped with a bigger engine. In terms of performance, 2005 Cadillac DeVille (275 HP @ 5600 RPM) has 86 more horse power than 2008 Mazda RX-8. (189 HP @ 7000 RPM). In normal driving conditions, 2005 Cadillac DeVille should accelerate faster than 2008 Mazda RX-8. With that said, vehicle weight also plays an important factor in acceleration. 2005 Cadillac DeVille weights approximately 457 kg more than 2008 Mazda RX-8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Mazda RX-8 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 2008 Mazda RX-8. However, in wet, icy, snow, or gravel driving conditions, 2005 Cadillac DeVille, 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, 2005 Cadillac DeVille (406 Nm @ 4000 RPM) has 186 more torque (in Nm) than 2008 Mazda RX-8. (220 Nm @ 5000 RPM). This means 2005 Cadillac DeVille will have an easier job in driving up hills or pulling heavy equipment than 2008 Mazda RX-8. 2005 Cadillac DeVille has automatic transmission and 2008 Mazda RX-8 has manual transmission. 2008 Mazda RX-8 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Cadillac DeVille will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Cadillac DeVille | 2008 Mazda RX-8 | |
| Make | Cadillac | Mazda |
| Model | DeVille | RX-8 |
| Year Released | 2005 | 2008 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4570 cc | 1308 cc |
| Engine Type | V | dual-disk rotary |
| Horse Power | 275 HP | 189 HP |
| Engine RPM | 5600 RPM | 7000 RPM |
| Torque | 406 Nm | 220 Nm |
| Torque RPM | 4000 RPM | 5000 RPM |
| Engine Bore Size | 93 mm | 78 mm |
| Engine Stroke Size | 84 mm | 83.6 mm |
| Engine Compression Ratio | 10.3:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1879 kg | 1422 kg |
| Vehicle Length | 5260 mm | 4440 mm |
| Vehicle Width | 1900 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1350 mm |
| Wheelbase Size | 2900 mm | 2710 mm |
| Fuel Consumption Overall | 15.7 L/100km | 10.6 L/100km |
| Fuel Tank Capacity | 70 L | 61 L |
