1991 Ford Sierra vs. 2007 Mazda 6
To start off, 2007 Mazda 6 is newer by 16 year(s). Which means there will be less support and parts availability for 1991 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1991 Ford Sierra would be higher. At 1,998 cc (4 cylinders), 2007 Mazda 6 is equipped with a bigger engine. In terms of performance, 2007 Mazda 6 (134 HP @ 3500 RPM) has 60 more horse power than 1991 Ford Sierra. (74 HP @ 4900 RPM) In normal driving conditions, 2007 Mazda 6 should accelerate faster than 1991 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mazda 6 weights approximately 525 kg more than 1991 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1991 Ford Sierra 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 1991 Ford Sierra. However, in wet, icy, snow, or gravel driving conditions, 2007 Mazda 6, 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, 2007 Mazda 6 (310 Nm @ 2000 RPM) has 187 more torque (in Nm) than 1991 Ford Sierra. (123 Nm @ 2900 RPM). This means 2007 Mazda 6 will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Sierra.
Compare all specifications:
| 1991 Ford Sierra | 2007 Mazda 6 | |
| Make | Ford | Mazda |
| Model | Sierra | 6 |
| Year Released | 1991 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1597 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 74 HP | 134 HP |
| Engine RPM | 4900 RPM | 3500 RPM |
| Torque | 123 Nm | 310 Nm |
| Torque RPM | 2900 RPM | 2000 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1015 kg | 1540 kg |
| Vehicle Length | 4430 mm | 4710 mm |
| Vehicle Width | 1700 mm | 1790 mm |
| Vehicle Height | 1370 mm | 1490 mm |
| Wheelbase Size | 2620 mm | 2680 mm |
