2006 Alfa Romeo 166 vs. 2006 BMW Z4
To start off, both 2006 Alfa Romeo 166 and 2006 BMW Z4 were released in the same year (2006). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 2,979 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (229 HP @ 5900 RPM) has 81 more horse power than 2006 Alfa Romeo 166. (148 HP @ 6500 RPM) In normal driving conditions, 2006 BMW Z4 should accelerate faster than 2006 Alfa Romeo 166. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW Z4 weights approximately 135 kg more than 2006 Alfa Romeo 166. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 BMW Z4 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2006 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2006 Alfa Romeo 166, being front wheel drive (FWD), will offer much better control with better grip. 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 (300 Nm @ 3500 RPM) has 119 more torque (in Nm) than 2006 Alfa Romeo 166. (181 Nm @ 3800 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2006 Alfa Romeo 166.
Compare all specifications:
| 2006 Alfa Romeo 166 | 2006 BMW Z4 | |
| Make | Alfa Romeo | BMW |
| Model | 166 | Z4 |
| Year Released | 2006 | 2006 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1970 cc | 2979 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 229 HP |
| Engine RPM | 6500 RPM | 5900 RPM |
| Torque | 181 Nm | 300 Nm |
| Torque RPM | 3800 RPM | 3500 RPM |
| Engine Bore Size | 83 mm | 84 mm |
| Engine Stroke Size | 91 mm | 90 mm |
| Engine Compression Ratio | 10.0:1 | 10.2:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 211 km/hour | 250 km/hour |
| Acceleration 0-100mph | 9.8 seconds | 5.9 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1495 kg | 1630 kg |
| Vehicle Length | 4730 mm | 4570 mm |
| Vehicle Width | 1810 mm | 1790 mm |
| Vehicle Height | 1420 mm | 1680 mm |
| Wheelbase Size | 2710 mm | 2500 mm |
| Fuel Consumption Overall | 9.9 L/100km | 9.1 L/100km |
| Fuel Tank Capacity | 69 L | 55 L |
