2005 Alfa Romeo Spider vs. 2007 BMW Z4
To start off, 2007 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Alfa Romeo Spider. In addition, the cost of maintenance, including insurance, on 2005 Alfa Romeo Spider would be higher. At 3,179 cc (6 cylinders), 2005 Alfa Romeo Spider is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (335 HP @ 7900 RPM) has 88 more horse power than 2005 Alfa Romeo Spider. (247 HP @ 6200 RPM) In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2005 Alfa Romeo Spider. With that said, vehicle weight also plays an important factor in acceleration. 2005 Alfa Romeo Spider weights approximately 117 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, 2005 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 (315 Nm @ 2750 RPM) has 15 more torque (in Nm) than 2005 Alfa Romeo Spider. (300 Nm @ 4800 RPM). This means 2007 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Alfa Romeo Spider.
Compare all specifications:
| 2005 Alfa Romeo Spider | 2007 BMW Z4 | |
| Make | Alfa Romeo | BMW |
| Model | Spider | Z4 |
| Year Released | 2005 | 2007 |
| Body Type | Roadster | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3179 cc | 2979 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 247 HP | 335 HP |
| Engine RPM | 6200 RPM | 7900 RPM |
| Torque | 300 Nm | 315 Nm |
| Torque RPM | 4800 RPM | 2750 RPM |
| Engine Bore Size | 93 mm | 87 mm |
| Engine Stroke Size | 78 mm | 91 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 242 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.6 seconds | 5.9 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1407 kg | 1290 kg |
| Vehicle Length | 4310 mm | 4100 mm |
| Vehicle Width | 1780 mm | 1790 mm |
| Vehicle Height | 1320 mm | 1310 mm |
| Wheelbase Size | 2550 mm | 2500 mm |
| Fuel Consumption Overall | 13.2 L/100km | 9.1 L/100km |
| Fuel Tank Capacity | 70 L | 55 L |
