1985 Ford Sierra vs. 2006 Mazda MX-5 Miata
To start off, 2006 Mazda MX-5 Miata is newer by 21 year(s). Which means there will be less support and parts availability for 1985 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1985 Ford Sierra would be higher. At 2,790 cc (6 cylinders), 1985 Ford Sierra is equipped with a bigger engine. In terms of performance, 2006 Mazda MX-5 Miata (170 HP @ 6700 RPM) has 22 more horse power than 1985 Ford Sierra. (148 HP @ 5700 RPM) In normal driving conditions, 2006 Mazda MX-5 Miata should accelerate faster than 1985 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2006 Mazda MX-5 Miata weights approximately 205 kg more than 1985 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1985 Ford Sierra (220 Nm @ 3800 RPM) has 30 more torque (in Nm) than 2006 Mazda MX-5 Miata. (190 Nm @ 5000 RPM). This means 1985 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 2006 Mazda MX-5 Miata.
Compare all specifications:
| 1985 Ford Sierra | 2006 Mazda MX-5 Miata | |
| Make | Ford | Mazda |
| Model | Sierra | MX-5 Miata |
| Year Released | 1985 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 2790 cc | 1999 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 170 HP |
| Engine RPM | 5700 RPM | 6700 RPM |
| Torque | 220 Nm | 190 Nm |
| Torque RPM | 3800 RPM | 5000 RPM |
| Vehicle Weight | 1205 kg | 1410 kg |
| Vehicle Length | 4400 mm | 4000 mm |
| Vehicle Width | 1680 mm | 1730 mm |
| Vehicle Height | 1370 mm | 1250 mm |
| Wheelbase Size | 2620 mm | 2340 mm |
