1990 BMW Z1 vs. 2007 Jeep Liberty
To start off, 2007 Jeep Liberty 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 3,701 cc (6 cylinders), 2007 Jeep Liberty is equipped with a bigger engine. In terms of performance, 2007 Jeep Liberty (210 HP @ 5200 RPM) has 35 more horse power than 1990 BMW Z1. (175 HP @ 5800 RPM) In normal driving conditions, 2007 Jeep Liberty should accelerate faster than 1990 BMW Z1. With that said, vehicle weight also plays an important factor in acceleration. 2007 Jeep Liberty weights approximately 781 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 Jeep Liberty 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 Jeep Liberty 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 Jeep Liberty (319 Nm @ 4000 RPM) has 89 more torque (in Nm) than 1990 BMW Z1. (230 Nm @ 4000 RPM). This means 2007 Jeep Liberty will have an easier job in driving up hills or pulling heavy equipment than 1990 BMW Z1.
Compare all specifications:
| 1990 BMW Z1 | 2007 Jeep Liberty | |
| Make | BMW | Jeep |
| Model | Z1 | Liberty |
| Year Released | 1990 | 2007 |
| Body Type | Roadster | SUV |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 3701 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 175 HP | 210 HP |
| Engine RPM | 5800 RPM | 5200 RPM |
| Torque | 230 Nm | 319 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 82 mm | 93 mm |
| Engine Stroke Size | 78.8 mm | 90.8 mm |
| Engine Compression Ratio | 11.0:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1250 kg | 2031 kg |
| Vehicle Length | 3960 mm | 4440 mm |
| Vehicle Width | 1810 mm | 1830 mm |
| Vehicle Height | 1280 mm | 1790 mm |
| Wheelbase Size | 2450 mm | 2660 mm |
