2005 Audi S4 vs. 1987 BMW Z1
To start off, 2005 Audi S4 is newer by 18 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 4,163 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (339 HP @ 7000 RPM) has 164 more horse power than 1987 BMW Z1. (175 HP @ 5800 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 1987 BMW Z1. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 425 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 2005 Audi S4 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, 2005 Audi S4 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, 2005 Audi S4 (430 Nm @ 3500 RPM) has 200 more torque (in Nm) than 1987 BMW Z1. (230 Nm @ 4000 RPM). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1987 BMW Z1.
Compare all specifications:
| 2005 Audi S4 | 1987 BMW Z1 | |
| Make | Audi | BMW |
| Model | S4 | Z1 |
| Year Released | 2005 | 1987 |
| Body Type | Sedan | Roadster |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2494 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 339 HP | 175 HP |
| Engine RPM | 7000 RPM | 5800 RPM |
| Torque | 430 Nm | 230 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 84.5 mm | 82 mm |
| Engine Stroke Size | 92.8 mm | 78.8 mm |
| Engine Compression Ratio | 11.0:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Weight | 1675 kg | 1250 kg |
| Vehicle Length | 4580 mm | 3960 mm |
| Vehicle Width | 1790 mm | 1810 mm |
| Vehicle Height | 1420 mm | 1280 mm |
| Wheelbase Size | 2580 mm | 2450 mm |
