2003 Mazda RX-8 vs. 2007 Mercury Grand Marquis
To start off, 2007 Mercury Grand Marquis is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Mazda RX-8. In addition, the cost of maintenance, including insurance, on 2003 Mazda RX-8 would be higher. At 4,603 cc (8 cylinders), 2007 Mercury Grand Marquis is equipped with a bigger engine. In terms of performance, 2007 Mercury Grand Marquis (239 HP @ 4900 RPM) has 11 more horse power than 2003 Mazda RX-8. (228 HP @ 8200 RPM) In normal driving conditions, 2007 Mercury Grand Marquis should accelerate faster than 2003 Mazda RX-8. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercury Grand Marquis weights approximately 407 kg more than 2003 Mazda RX-8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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 Mercury Grand Marquis (389 Nm @ 4100 RPM) has 178 more torque (in Nm) than 2003 Mazda RX-8. (211 Nm @ 5500 RPM). This means 2007 Mercury Grand Marquis will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda RX-8. 2007 Mercury Grand Marquis has automatic transmission and 2003 Mazda RX-8 has manual transmission. 2003 Mazda RX-8 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Mercury Grand Marquis will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Mazda RX-8 | 2007 Mercury Grand Marquis | |
| Make | Mazda | Mercury |
| Model | RX-8 | Grand Marquis |
| Year Released | 2003 | 2007 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1308 cc | 4603 cc |
| Engine Type | dual-disk rotary | V |
| Horse Power | 228 HP | 239 HP |
| Engine RPM | 8200 RPM | 4900 RPM |
| Torque | 211 Nm | 389 Nm |
| Torque RPM | 5500 RPM | 4100 RPM |
| Engine Compression Ratio | 10.0:1 | 9.4:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1425 kg | 1832 kg |
| Vehicle Length | 4440 mm | 5370 mm |
| Vehicle Width | 1780 mm | 2000 mm |
| Vehicle Height | 1350 mm | 1490 mm |
| Wheelbase Size | 2710 mm | 2920 mm |
| Fuel Consumption Overall | 11.4 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 61 L | 72 L |
