1991 Audi 100 vs. 2005 BMW Z4
To start off, 2005 BMW Z4 is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Audi 100. In addition, the cost of maintenance, including insurance, on 1991 Audi 100 would be higher. At 2,771 cc (6 cylinders), 1991 Audi 100 is equipped with a bigger engine. In terms of performance, 2005 BMW Z4 (184 HP @ 6100 RPM) has 13 more horse power than 1991 Audi 100. (171 HP @ 5500 RPM) In normal driving conditions, 2005 BMW Z4 should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 1991 Audi 100 weights approximately 105 kg more than 2005 BMW Z4.
Because 1991 Audi 100 is four wheel drive (4WD), it will have significant more traction and grip than 2005 BMW Z4. In wet, icy, snow, or gravel driving conditions, 1991 Audi 100 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 Audi 100 (251 Nm @ 3000 RPM) has 14 more torque (in Nm) than 2005 BMW Z4. (237 Nm @ 3500 RPM). This means 1991 Audi 100 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW Z4.
Compare all specifications:
| 1991 Audi 100 | 2005 BMW Z4 | |
| Make | Audi | BMW |
| Model | 100 | Z4 |
| Year Released | 1991 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 2771 cc | 2489 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 171 HP | 184 HP |
| Engine RPM | 5500 RPM | 6100 RPM |
| Torque | 251 Nm | 237 Nm |
| Torque RPM | 3000 RPM | 3500 RPM |
| Engine Bore Size | 82.5 mm | 84 mm |
| Engine Stroke Size | 86.4 mm | 75 mm |
| Top Speed | 218 km/hour | 235 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1500 kg | 1395 kg |
| Vehicle Length | 4800 mm | 4100 mm |
| Vehicle Width | 1780 mm | 1790 mm |
| Vehicle Height | 1450 mm | 1310 mm |
| Wheelbase Size | 2690 mm | 2500 mm |
| Fuel Consumption Highway | 10 L/100km | 8.4 L/100km |
| Fuel Consumption City | 14 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 8.8 L/100km | 9 L/100km |
| Fuel Tank Capacity | 80 L | 55 L |
