2003 Alfa Romeo 166 vs. 2007 BMW Z4
To start off, 2007 BMW Z4 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 166 would be higher. At 3,199 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (358 HP @ 7900 RPM) has 186 more horse power than 2003 Alfa Romeo 166. (172 HP @ 4000 RPM) In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2003 Alfa Romeo 166.
Because 2007 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 2007 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2003 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, both vehicles can yield 385 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 2003 Alfa Romeo 166 | 2007 BMW Z4 | |
| Make | Alfa Romeo | BMW |
| Model | 166 | Z4 |
| Year Released | 2003 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2387 cc | 3199 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 172 HP | 358 HP |
| Engine RPM | 4000 RPM | 7900 RPM |
| Torque | 385 Nm | 385 Nm |
| Torque RPM | 2000 RPM | 4900 RPM |
| Engine Compression Ratio | 18.5:1 | 11.5:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 4730 mm | 4100 mm |
| Vehicle Width | 1810 mm | 1790 mm |
| Vehicle Height | 1420 mm | 1300 mm |
| Wheelbase Size | 2710 mm | 2500 mm |
