1987 BMW Z1 vs. 1991 Chevrolet Astro
To start off, 1991 Chevrolet Astro is newer by 4 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 4,293 cc (6 cylinders), 1991 Chevrolet Astro is equipped with a bigger engine. In terms of performance, 1991 Chevrolet Astro (183 HP @ 4400 RPM) has 8 more horse power than 1987 BMW Z1. (175 HP @ 5800 RPM) In normal driving conditions, 1991 Chevrolet Astro should accelerate faster than 1987 BMW Z1. With that said, vehicle weight also plays an important factor in acceleration. 1991 Chevrolet Astro weights approximately 646 kg more than 1987 BMW Z1. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1991 Chevrolet Astro 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, 1991 Chevrolet Astro 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, 1991 Chevrolet Astro (338 Nm @ 2800 RPM) has 108 more torque (in Nm) than 1987 BMW Z1. (230 Nm @ 4000 RPM). This means 1991 Chevrolet Astro will have an easier job in driving up hills or pulling heavy equipment than 1987 BMW Z1.
Compare all specifications:
| 1987 BMW Z1 | 1991 Chevrolet Astro | |
| Make | BMW | Chevrolet |
| Model | Z1 | Astro |
| Year Released | 1987 | 1991 |
| Body Type | Roadster | Minivan |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 4293 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 175 HP | 183 HP |
| Engine RPM | 5800 RPM | 4400 RPM |
| Torque | 230 Nm | 338 Nm |
| Torque RPM | 4000 RPM | 2800 RPM |
| Engine Bore Size | 82 mm | 101.6 mm |
| Engine Stroke Size | 78.8 mm | 88.4 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 8 seats |
| Vehicle Weight | 1250 kg | 1896 kg |
| Vehicle Length | 3960 mm | 4830 mm |
| Vehicle Width | 1810 mm | 1980 mm |
| Vehicle Height | 1280 mm | 1910 mm |
| Wheelbase Size | 2450 mm | 2830 mm |
