1988 BMW Z1 vs. 2006 Fiat Siena
To start off, 2006 Fiat Siena is newer by 18 year(s). Which means there will be less support and parts availability for 1988 BMW Z1. In addition, the cost of maintenance, including insurance, on 1988 BMW Z1 would be higher. At 2,492 cc (6 cylinders), 1988 BMW Z1 is equipped with a bigger engine. In terms of performance, 1988 BMW Z1 (175 HP @ 5800 RPM) has 103 more horse power than 2006 Fiat Siena. (72 HP @ 6000 RPM). In normal driving conditions, 1988 BMW Z1 should accelerate faster than 2006 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 1988 BMW Z1 weights approximately 80 kg more than 2006 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1988 BMW Z1 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1988 BMW Z1. However, in wet, icy, snow, or gravel driving conditions, 2006 Fiat Siena, being front wheel drive (FWD), will offer much better control with better grip. 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, 1988 BMW Z1 (230 Nm @ 4000 RPM) has 128 more torque (in Nm) than 2006 Fiat Siena. (102 Nm @ 3250 RPM). This means 1988 BMW Z1 will have an easier job in driving up hills or pulling heavy equipment than 2006 Fiat Siena.
Compare all specifications:
| 1988 BMW Z1 | 2006 Fiat Siena | |
| Make | BMW | Fiat |
| Model | Z1 | Siena |
| Year Released | 1988 | 2006 |
| Body Type | Roadster | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 1242 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 175 HP | 72 HP |
| Engine RPM | 5800 RPM | 6000 RPM |
| Torque | 230 Nm | 102 Nm |
| Torque RPM | 4000 RPM | 3250 RPM |
| Engine Bore Size | 82 mm | 70.8 mm |
| Engine Stroke Size | 78.8 mm | 78.8 mm |
| Engine Compression Ratio | 11.0:1 | 9.1:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1250 kg | 1170 kg |
| Vehicle Length | 3960 mm | 3830 mm |
| Vehicle Width | 1810 mm | 1640 mm |
| Vehicle Height | 1280 mm | 1440 mm |
| Wheelbase Size | 2450 mm | 2380 mm |
