1989 Ford Sierra vs. 1991 Holden Commodore
To start off, 1991 Holden Commodore is newer by 2 year(s). Which means there will be less support and parts availability for 1989 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1989 Ford Sierra would be higher. At 3,791 cc (6 cylinders), 1991 Holden Commodore is equipped with a bigger engine. In terms of performance, 1991 Holden Commodore (172 HP @ 4800 RPM) has 24 more horse power than 1989 Ford Sierra. (148 HP @ 5700 RPM) In normal driving conditions, 1991 Holden Commodore should accelerate faster than 1989 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1991 Holden Commodore weights approximately 100 kg more than 1989 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1989 Ford Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1991 Holden Commodore. In wet, icy, snow, or gravel driving conditions, 1989 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, 1991 Holden Commodore (288 Nm @ 3200 RPM) has 50 more torque (in Nm) than 1989 Ford Sierra. (238 Nm @ 3000 RPM). This means 1991 Holden Commodore will have an easier job in driving up hills or pulling heavy equipment than 1989 Ford Sierra. 1991 Holden Commodore has automatic transmission and 1989 Ford Sierra has manual transmission. 1989 Ford Sierra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1991 Holden Commodore will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1989 Ford Sierra | 1991 Holden Commodore | |
| Make | Ford | Holden |
| Model | Sierra | Commodore |
| Year Released | 1989 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2933 cc | 3791 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 172 HP |
| Engine RPM | 5700 RPM | 4800 RPM |
| Torque | 238 Nm | 288 Nm |
| Torque RPM | 3000 RPM | 3200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1295 kg | 1395 kg |
| Vehicle Length | 4430 mm | 4900 mm |
| Vehicle Width | 1700 mm | 1820 mm |
| Vehicle Height | 1370 mm | 1410 mm |
| Wheelbase Size | 2610 mm | 2740 mm |
