2007 BMW Z4 vs. 1986 Ford Sierra
To start off, 2007 BMW Z4 is newer by 21 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, 2007 BMW Z4 (189 HP @ 6000 RPM) has 29 more horse power than 1986 Ford Sierra. (160 HP @ 5700 RPM). In normal driving conditions, 2007 BMW Z4 should accelerate faster than 1986 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1986 Ford Sierra weights approximately 6 kg more than 2007 BMW Z4.
Because 1986 Ford Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW Z4. 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, 2007 BMW Z4 (245 Nm @ 3500 RPM) has 29 more torque (in Nm) than 1986 Ford Sierra. (216 Nm @ 4300 RPM). This means 2007 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 1986 Ford Sierra.
Compare all specifications:
| 2007 BMW Z4 | 1986 Ford Sierra | |
| Make | BMW | Ford |
| Model | Z4 | Sierra |
| Year Released | 2007 | 1986 |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 2792 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 189 HP | 160 HP |
| Engine RPM | 6000 RPM | 5700 RPM |
| Torque | 245 Nm | 216 Nm |
| Torque RPM | 3500 RPM | 4300 RPM |
| Engine Bore Size | 84 mm | 93 mm |
| Engine Stroke Size | 75 mm | 68.5 mm |
| Top Speed | 235 km/hour | 196 km/hour |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1260 kg | 1266 kg |
| Vehicle Length | 4100 mm | 4430 mm |
| Vehicle Width | 1790 mm | 1730 mm |
| Wheelbase Size | 2500 mm | 2610 mm |
| Fuel Tank Capacity | 55 L | 116 L |
