2001 Alfa Romeo Spider vs. 2007 BMW Z4
To start off, 2007 BMW Z4 is newer by 6 year(s). Which means there will be less support and parts availability for 2001 Alfa Romeo Spider. In addition, the cost of maintenance, including insurance, on 2001 Alfa Romeo Spider would be higher. At 2,171 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (168 HP @ 6250 RPM) has 30 more horse power than 2001 Alfa Romeo Spider. (138 HP @ 6300 RPM) In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2001 Alfa Romeo Spider. With that said, vehicle weight also plays an important factor in acceleration. 2001 Alfa Romeo Spider weights approximately 25 kg more than 2007 BMW Z4.
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, 2001 Alfa Romeo Spider, 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, 2007 BMW Z4 (210 Nm @ 3500 RPM) has 47 more torque (in Nm) than 2001 Alfa Romeo Spider. (163 Nm @ 3500 RPM). This means 2007 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2001 Alfa Romeo Spider.
Compare all specifications:
| 2001 Alfa Romeo Spider | 2007 BMW Z4 | |
| Make | Alfa Romeo | BMW |
| Model | Spider | Z4 |
| Year Released | 2001 | 2007 |
| Body Type | Roadster | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1773 cc | 2171 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 168 HP |
| Engine RPM | 6300 RPM | 6250 RPM |
| Torque | 163 Nm | 210 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 82 mm | 80 mm |
| Engine Stroke Size | 82.8 mm | 72 mm |
| Engine Compression Ratio | 10.0:1 | 10.8:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1350 kg | 1325 kg |
| Vehicle Length | 4290 mm | 4100 mm |
| Vehicle Width | 1790 mm | 1790 mm |
| Vehicle Height | 1320 mm | 1310 mm |
| Wheelbase Size | 2550 mm | 2500 mm |
| Fuel Tank Capacity | 70 L | 55 L |
