2005 Audi S4 vs. 2002 BMW Z4
To start off, 2005 Audi S4 is newer by 3 year(s). Which means there will be less support and parts availability for 2002 BMW Z4. In addition, the cost of maintenance, including insurance, on 2002 BMW Z4 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 (340 HP @ 4000 RPM) has 113 more horse power than 2002 BMW Z4. (227 HP @ 5900 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 2002 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 384 kg more than 2002 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Audi S4 (410 Nm) has 110 more torque (in Nm) than 2002 BMW Z4. (300 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2002 BMW Z4.
Compare all specifications:
| 2005 Audi S4 | 2002 BMW Z4 | |
| Make | Audi | BMW |
| Model | S4 | Z4 |
| Year Released | 2005 | 2002 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2996 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 340 HP | 227 HP |
| Engine RPM | 4000 RPM | 5900 RPM |
| Torque | 410 Nm | 300 Nm |
| Engine Bore Size | 85 mm | 84 mm |
| Engine Stroke Size | 93 mm | 89.6 mm |
| Engine Compression Ratio | 11.0:1 | 10.2:1 |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1770 kg | 1386 kg |
| Vehicle Length | 4550 mm | 4100 mm |
| Vehicle Width | 1770 mm | 1790 mm |
| Vehicle Height | 1430 mm | 1310 mm |
| Wheelbase Size | 2770 mm | 2500 mm |
| Fuel Consumption Highway | 9.8 L/100km | 7.3 L/100km |
| Fuel Consumption City | 13.1 L/100km | 13.5 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 9.5 L/100km |
| Fuel Tank Capacity | 66 L | 55 L |
