1984 Ford Sierra vs. 2006 BMW Z4
To start off, 2006 BMW Z4 is newer by 22 year(s). Which means there will be less support and parts availability for 1984 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1984 Ford Sierra would be higher. At 2,170 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (168 HP @ 6250 RPM) has 93 more horse power than 1984 Ford Sierra. (75 HP @ 5300 RPM) In normal driving conditions, 2006 BMW Z4 should accelerate faster than 1984 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW Z4 weights approximately 285 kg more than 1984 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2006 BMW Z4 (210 Nm @ 3500 RPM) has 91 more torque (in Nm) than 1984 Ford Sierra. (119 Nm @ 2900 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 1984 Ford Sierra. 2006 BMW Z4 has automatic transmission and 1984 Ford Sierra has manual transmission. 1984 Ford Sierra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 BMW Z4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1984 Ford Sierra | 2006 BMW Z4 | |
| Make | Ford | BMW |
| Model | Sierra | Z4 |
| Year Released | 1984 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 1608 cc | 2170 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 75 HP | 168 HP |
| Engine RPM | 5300 RPM | 6250 RPM |
| Torque | 119 Nm | 210 Nm |
| Torque RPM | 2900 RPM | 3500 RPM |
| Engine Bore Size | 87.8 mm | 80 mm |
| Engine Stroke Size | 66 mm | 72 mm |
| Engine Compression Ratio | 9.2:1 | 10.8:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1040 kg | 1325 kg |
| Vehicle Length | 4500 mm | 4100 mm |
| Vehicle Width | 1720 mm | 1790 mm |
| Vehicle Height | 1450 mm | 1310 mm |
| Wheelbase Size | 2610 mm | 2500 mm |
| Fuel Tank Capacity | 60 L | 55 L |
