1991 BMW Z1 vs. 1994 Porsche 911
To start off, 1994 Porsche 911 is newer by 3 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 3,598 cc (6 cylinders), 1994 Porsche 911 is equipped with a bigger engine. In terms of performance, 1994 Porsche 911 (247 HP @ 6100 RPM) has 72 more horse power than 1991 BMW Z1. (175 HP @ 5800 RPM) In normal driving conditions, 1994 Porsche 911 should accelerate faster than 1991 BMW Z1. With that said, vehicle weight also plays an important factor in acceleration. 1994 Porsche 911 weights approximately 100 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 1994 Porsche 911 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, 1994 Porsche 911 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, 1994 Porsche 911 (316 Nm @ 4800 RPM) has 86 more torque (in Nm) than 1991 BMW Z1. (230 Nm @ 4000 RPM). This means 1994 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW Z1.
Compare all specifications:
| 1991 BMW Z1 | 1994 Porsche 911 | |
| Make | BMW | Porsche |
| Model | Z1 | 911 |
| Year Released | 1991 | 1994 |
| Body Type | Roadster | Roadster |
| Engine Position | Front | Rear |
| Engine Size | 2497 cc | 3598 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 175 HP | 247 HP |
| Engine RPM | 5800 RPM | 6100 RPM |
| Torque | 230 Nm | 316 Nm |
| Torque RPM | 4000 RPM | 4800 RPM |
| Engine Bore Size | 82 mm | 100 mm |
| Engine Stroke Size | 78.8 mm | 76.4 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1250 kg | 1350 kg |
| Vehicle Length | 3960 mm | 4300 mm |
| Vehicle Width | 1810 mm | 1660 mm |
| Vehicle Height | 1280 mm | 1260 mm |
