1991 Audi V8 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 V8. In addition, the cost of maintenance, including insurance, on 1991 Audi V8 would be higher. At 4,172 cc (8 cylinders), 1991 Audi V8 is equipped with a bigger engine. In terms of performance, 1991 Audi V8 (280 HP @ 5800 RPM) has 91 more horse power than 2006 BMW Z4. (189 HP @ 6000 RPM). In normal driving conditions, 1991 Audi V8 should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 1991 Audi V8 weights approximately 377 kg more than 2006 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1991 Audi V8 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 V8 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 V8 (400 Nm @ 4000 RPM) has 155 more torque (in Nm) than 2006 BMW Z4. (245 Nm @ 3500 RPM). This means 1991 Audi V8 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4. 1991 Audi V8 has automatic transmission and 2006 BMW Z4 has manual transmission. 2006 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1991 Audi V8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Audi V8 | 2006 BMW Z4 | |
| Make | Audi | BMW |
| Model | V8 | Z4 |
| Year Released | 1991 | 2006 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 2492 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 280 HP | 189 HP |
| Engine RPM | 5800 RPM | 6000 RPM |
| Torque | 400 Nm | 245 Nm |
| Torque RPM | 4000 RPM | 3500 RPM |
| Engine Compression Ratio | 10.6:1 | 11.0:1 |
| Top Speed | 244 km/hour | 235 km/hour |
| Acceleration 0-100mph | 7.7 seconds | 7 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1712 kg | 1335 kg |
| Vehicle Length | 4880 mm | 4100 mm |
| Vehicle Width | 1820 mm | 1790 mm |
| Vehicle Height | 1430 mm | 1310 mm |
| Wheelbase Size | 2710 mm | 2500 mm |
