1991 Audi 100 vs. 2006 BMW Z4
To start off, 2006 BMW Z4 is newer by 15 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 2,979 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (228 HP @ 5900 RPM) has 2 more horse power than 1991 Audi 100. (226 HP @ 5900 RPM) In normal driving conditions, 2006 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 249 kg more than 2006 BMW Z4.
Because 1991 Audi 100 is four wheel drive (4WD), it will have significant more traction and grip than 2006 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 (350 Nm @ 1950 RPM) has 49 more torque (in Nm) than 2006 BMW Z4. (301 Nm @ 3500 RPM). This means 1991 Audi 100 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4.
Compare all specifications:
| 1991 Audi 100 | 2006 BMW Z4 | |
| Make | Audi | BMW |
| Model | 100 | Z4 |
| Year Released | 1991 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 2226 cc | 2979 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 226 HP | 228 HP |
| Engine RPM | 5900 RPM | 5900 RPM |
| Torque | 350 Nm | 301 Nm |
| Torque RPM | 1950 RPM | 3500 RPM |
| Engine Bore Size | 81 mm | 84 mm |
| Engine Stroke Size | 86.4 mm | 89.6 mm |
| Top Speed | 244 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.8 seconds | 5.9 seconds |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1614 kg | 1365 kg |
| Vehicle Length | 4800 mm | 4100 mm |
| Vehicle Width | 1810 mm | 1790 mm |
| Vehicle Height | 1450 mm | 1310 mm |
| Wheelbase Size | 2700 mm | 2500 mm |
| Fuel Consumption Highway | 9.5 L/100km | 7.8 L/100km |
| Fuel Consumption City | 14.2 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 8.7 L/100km | 9.1 L/100km |
| Fuel Tank Capacity | 80 L | 55 L |
