1987 BMW Z1 vs. 2007 BMW X3
To start off, 2007 BMW X3 is newer by 20 year(s). Which means there will be less support and parts availability for 1987 BMW Z1. In addition, the cost of maintenance, including insurance, on 1987 BMW Z1 would be higher. At 2,494 cc (6 cylinders), 1987 BMW Z1 is equipped with a bigger engine. In terms of performance, 1987 BMW Z1 (175 HP @ 5800 RPM) has 27 more horse power than 2007 BMW X3. (148 HP @ 4000 RPM). In normal driving conditions, 1987 BMW Z1 should accelerate faster than 2007 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X3 weights approximately 490 kg more than 1987 BMW Z1.
Because 2007 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 1987 BMW Z1. In wet, icy, snow, or gravel driving conditions, 2007 BMW X3 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 X3 (330 Nm @ 2000 RPM) has 100 more torque (in Nm) than 1987 BMW Z1. (230 Nm @ 4000 RPM). This means 2007 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 1987 BMW Z1.
Compare all specifications:
| 1987 BMW Z1 | 2007 BMW X3 | |
| Make | BMW | BMW |
| Model | Z1 | X3 |
| Year Released | 1987 | 2007 |
| Body Type | Roadster | SUV |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 1994 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 175 HP | 148 HP |
| Engine RPM | 5800 RPM | 4000 RPM |
| Torque | 230 Nm | 330 Nm |
| Torque RPM | 4000 RPM | 2000 RPM |
| Engine Bore Size | 82 mm | 84 mm |
| Engine Stroke Size | 78.8 mm | 90 mm |
| Engine Compression Ratio | 11.0:1 | 17.0:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1250 kg | 1740 kg |
| Vehicle Length | 3960 mm | 4570 mm |
| Vehicle Width | 1810 mm | 1680 mm |
| Vehicle Height | 1280 mm | 1860 mm |
| Wheelbase Size | 2450 mm | 2800 mm |
