2007 BMW X3 vs. 1990 BMW Z1
To start off, 2007 BMW X3 is newer by 17 year(s). Which means there will be less support and parts availability for 1990 BMW Z1. In addition, the cost of maintenance, including insurance, on 1990 BMW Z1 would be higher. At 2,993 cc (6 cylinders), 2007 BMW X3 is equipped with a bigger engine. In terms of performance, 2007 BMW X3 (215 HP @ 4000 RPM) has 40 more horse power than 1990 BMW Z1. (175 HP @ 5800 RPM). In normal driving conditions, 2007 BMW X3 should accelerate faster than 1990 BMW Z1. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X3 weights approximately 515 kg more than 1990 BMW Z1. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 1990 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 (480 Nm @ 1750 RPM) has 250 more torque (in Nm) than 1990 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 1990 BMW Z1. 2007 BMW X3 has automatic transmission and 1990 BMW Z1 has manual transmission. 1990 BMW Z1 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW X3 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW X3 | 1990 BMW Z1 | |
| Make | BMW | BMW |
| Model | X3 | Z1 |
| Year Released | 2007 | 1990 |
| Body Type | SUV | Roadster |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2494 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 215 HP | 175 HP |
| Engine RPM | 4000 RPM | 5800 RPM |
| Torque | 480 Nm | 230 Nm |
| Torque RPM | 1750 RPM | 4000 RPM |
| Engine Bore Size | 84 mm | 82 mm |
| Engine Stroke Size | 90 mm | 78.8 mm |
| Engine Compression Ratio | 17.0:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Weight | 1765 kg | 1250 kg |
| Vehicle Length | 4570 mm | 3960 mm |
| Vehicle Width | 1680 mm | 1810 mm |
| Vehicle Height | 1860 mm | 1280 mm |
| Wheelbase Size | 2800 mm | 2450 mm |
