2004 Audi S4 vs. 2003 BMW Z8
To start off, 2004 Audi S4 is newer by 1 year(s). Which means there will be less support and parts availability for 2003 BMW Z8. In addition, the cost of maintenance, including insurance, on 2003 BMW Z8 would be higher. At 4,939 cc (8 cylinders), 2003 BMW Z8 is equipped with a bigger engine. In terms of performance, 2003 BMW Z8 (400 HP @ 6600 RPM) has 61 more horse power than 2004 Audi S4. (339 HP @ 7000 RPM) In normal driving conditions, 2003 BMW Z8 should accelerate faster than 2004 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi S4 weights approximately 180 kg more than 2003 BMW Z8.
Because 2004 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2003 BMW Z8. In wet, icy, snow, or gravel driving conditions, 2004 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, 2003 BMW Z8 (500 Nm @ 3800 RPM) has 90 more torque (in Nm) than 2004 Audi S4. (410 Nm @ 3500 RPM). This means 2003 BMW Z8 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi S4. 2004 Audi S4 has automatic transmission and 2003 BMW Z8 has manual transmission. 2003 BMW Z8 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 Audi S4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Audi S4 | 2003 BMW Z8 | |
| Make | Audi | BMW |
| Model | S4 | Z8 |
| Year Released | 2004 | 2003 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4162 cc | 4939 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 339 HP | 400 HP |
| Engine RPM | 7000 RPM | 6600 RPM |
| Torque | 410 Nm | 500 Nm |
| Torque RPM | 3500 RPM | 3800 RPM |
| Engine Bore Size | 84.5 mm | 94 mm |
| Engine Stroke Size | 92.8 mm | 89 mm |
| Engine Compression Ratio | 11.0:1 | 11.0:1 |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 5.8 seconds | 4.7 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 | 1765 kg | 1585 kg |
| Vehicle Length | 4590 mm | 4410 mm |
| Vehicle Width | 1780 mm | 1840 mm |
| Vehicle Height | 1430 mm | 1320 mm |
| Wheelbase Size | 2470 mm | 2580 mm |
| Fuel Consumption | 9.1 L/100km | 10.6 L/100km |
| Fuel Consumption City | 17.9 L/100km | 21.1 L/100km |
| Fuel Consumption Overall | 12.3 L/100km | 14.5 L/100km |
| Fuel Tank Capacity | 63 L | 73 L |
