1991 BMW Z1 vs. 2006 BMW 530
To start off, 2006 BMW 530 is newer by 15 year(s). Which means there will be less support and parts availability for 1991 BMW Z1. In addition, the cost of maintenance, including insurance, on 1991 BMW Z1 would be higher. At 2,999 cc (6 cylinders), 2006 BMW 530 is equipped with a bigger engine. In terms of performance, 2006 BMW 530 (255 HP @ 6600 RPM) has 80 more horse power than 1991 BMW Z1. (175 HP @ 5800 RPM) In normal driving conditions, 2006 BMW 530 should accelerate faster than 1991 BMW Z1. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 530 weights approximately 500 kg more than 1991 BMW Z1. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 BMW 530 is four wheel drive (4WD), it will have significant more traction and grip than 1991 BMW Z1. In wet, icy, snow, or gravel driving conditions, 2006 BMW 530 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, 2006 BMW 530 (298 Nm @ 2750 RPM) has 68 more torque (in Nm) than 1991 BMW Z1. (230 Nm @ 4000 RPM). This means 2006 BMW 530 will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW Z1.
Compare all specifications:
| 1991 BMW Z1 | 2006 BMW 530 | |
| Make | BMW | BMW |
| Model | Z1 | 530 |
| Year Released | 1991 | 2006 |
| Body Type | Roadster | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 2999 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 175 HP | 255 HP |
| Engine RPM | 5800 RPM | 6600 RPM |
| Torque | 230 Nm | 298 Nm |
| Torque RPM | 4000 RPM | 2750 RPM |
| Engine Bore Size | 82 mm | 85 mm |
| Engine Stroke Size | 78.8 mm | 88 mm |
| Engine Compression Ratio | 11.0:1 | 10.7:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1250 kg | 1750 kg |
| Vehicle Length | 3960 mm | 4860 mm |
| Vehicle Width | 1810 mm | 1850 mm |
| Vehicle Height | 1280 mm | 1470 mm |
| Wheelbase Size | 2450 mm | 2890 mm |
