2004 BMW Z4 vs. 2003 BMW X Activity
To start off, 2004 BMW Z4 is newer by 1 year(s). Which means there will be less support and parts availability for 2003 BMW X Activity. In addition, the cost of maintenance, including insurance, on 2003 BMW X Activity would be higher. At 2,992 cc (6 cylinders), 2003 BMW X Activity is equipped with a bigger engine. In terms of performance, 2003 BMW X Activity (228 HP @ 5900 RPM) has 60 more horse power than 2004 BMW Z4. (168 HP @ 6250 RPM) In normal driving conditions, 2003 BMW X Activity should accelerate faster than 2004 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW X Activity weights approximately 305 kg more than 2004 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 BMW X Activity is four wheel drive (4WD), it will have significant more traction and grip than 2004 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2003 BMW X Activity 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 X Activity (300 Nm @ 3500 RPM) has 90 more torque (in Nm) than 2004 BMW Z4. (210 Nm @ 3500 RPM). This means 2003 BMW X Activity will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW Z4.
Compare all specifications:
| 2004 BMW Z4 | 2003 BMW X Activity | |
| Make | BMW | BMW |
| Model | Z4 | X Activity |
| Year Released | 2004 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 2171 cc | 2992 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 168 HP | 228 HP |
| Engine RPM | 6250 RPM | 5900 RPM |
| Torque | 210 Nm | 300 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Compression Ratio | 10.8:1 | 10.2:1 |
| Drive Type | Rear | 4WD |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1325 kg | 1630 kg |
| Vehicle Length | 4100 mm | 4560 mm |
| Wheelbase Size | 2500 mm | 2830 mm |
| Fuel Tank Capacity | 55 L | 63 L |
