1986 Ford Sierra vs. 2005 Mazda RX-8
To start off, 2005 Mazda RX-8 is newer by 19 year(s). Which means there will be less support and parts availability for 1986 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1986 Ford Sierra would be higher. At 2,792 cc (6 cylinders), 1986 Ford Sierra is equipped with a bigger engine. In terms of performance, 2005 Mazda RX-8 (189 HP @ 7000 RPM) has 29 more horse power than 1986 Ford Sierra. (160 HP @ 5700 RPM) In normal driving conditions, 2005 Mazda RX-8 should accelerate faster than 1986 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mazda RX-8 weights approximately 90 kg more than 1986 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1986 Ford Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2005 Mazda RX-8. In wet, icy, snow, or gravel driving conditions, 1986 Ford 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 Mazda RX-8 (220 Nm @ 5000 RPM) has 4 more torque (in Nm) than 1986 Ford Sierra. (216 Nm @ 4300 RPM). This means 2005 Mazda RX-8 will have an easier job in driving up hills or pulling heavy equipment than 1986 Ford Sierra.
Compare all specifications:
| 1986 Ford Sierra | 2005 Mazda RX-8 | |
| Make | Ford | Mazda |
| Model | Sierra | RX-8 |
| Year Released | 1986 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 2792 cc | 1308 cc |
| Engine Type | V | dual-disk rotary |
| Horse Power | 160 HP | 189 HP |
| Engine RPM | 5700 RPM | 7000 RPM |
| Torque | 216 Nm | 220 Nm |
| Torque RPM | 4300 RPM | 5000 RPM |
| Engine Compression Ratio | 9.2:1 | 10.0:1 |
| Top Speed | 196 km/hour | 223 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 1266 kg | 1356 kg |
| Vehicle Length | 4430 mm | 4440 mm |
| Vehicle Width | 1730 mm | 1780 mm |
| Wheelbase Size | 2610 mm | 2710 mm |
| Fuel Tank Capacity | 116 L | 61 L |
