1986 Ford Sierra vs. 2006 Mazda RX-8
To start off, 2006 Mazda RX-8 is newer by 20 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, 2006 Mazda RX-8 (228 HP @ 8200 RPM) has 68 more horse power than 1986 Ford Sierra. (160 HP @ 5700 RPM) In normal driving conditions, 2006 Mazda RX-8 should accelerate faster than 1986 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2006 Mazda RX-8 weights approximately 162 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 2006 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, 1986 Ford Sierra (216 Nm @ 4300 RPM) has 5 more torque (in Nm) than 2006 Mazda RX-8. (211 Nm @ 5500 RPM). This means 1986 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 2006 Mazda RX-8.
Compare all specifications:
| 1986 Ford Sierra | 2006 Mazda RX-8 | |
| Make | Ford | Mazda |
| Model | Sierra | RX-8 |
| Year Released | 1986 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 2792 cc | 1308 cc |
| Engine Type | V | dual-disk rotary |
| Horse Power | 160 HP | 228 HP |
| Engine RPM | 5700 RPM | 8200 RPM |
| Torque | 216 Nm | 211 Nm |
| Torque RPM | 4300 RPM | 5500 RPM |
| Engine Bore Size | 93 mm | 87.5 mm |
| Engine Stroke Size | 68.5 mm | 85 mm |
| Engine Compression Ratio | 9.2:1 | 10.0:1 |
| Top Speed | 196 km/hour | 235 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 | 1428 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 |
