2001 BMW 320 vs. 2006 BMW Z4
To start off, 2006 BMW Z4 is newer by 5 year(s). Which means there will be less support and parts availability for 2001 BMW 320. In addition, the cost of maintenance, including insurance, on 2001 BMW 320 would be higher. At 2,492 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (189 HP @ 6000 RPM) has 19 more horse power than 2001 BMW 320. (170 HP @ 5900 RPM) In normal driving conditions, 2006 BMW Z4 should accelerate faster than 2001 BMW 320. With that said, vehicle weight also plays an important factor in acceleration. 2001 BMW 320 weights approximately 321 kg more than 2006 BMW Z4.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2006 BMW Z4 (245 Nm @ 3500 RPM) has 35 more torque (in Nm) than 2001 BMW 320. (210 Nm @ 3500 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2001 BMW 320.
Compare all specifications:
| 2001 BMW 320 | 2006 BMW Z4 | |
| Make | BMW | BMW |
| Model | 320 | Z4 |
| Year Released | 2001 | 2006 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2171 cc | 2492 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 170 HP | 189 HP |
| Engine RPM | 5900 RPM | 6000 RPM |
| Torque | 210 Nm | 245 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 80 mm | 84 mm |
| Engine Stroke Size | 72 mm | 75 mm |
| Engine Compression Ratio | 10.8:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 222 km/hour | 235 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1656 kg | 1335 kg |
| Vehicle Length | 4490 mm | 4100 mm |
| Vehicle Width | 1760 mm | 1790 mm |
| Vehicle Height | 1380 mm | 1310 mm |
| Wheelbase Size | 3000 mm | 2500 mm |
| Fuel Consumption Overall | 9.4 L/100km | 9 L/100km |
| Fuel Tank Capacity | 63 L | 55 L |
