1997 Alfa Romeo Spider vs. 2006 BMW 645
To start off, 2006 BMW 645 is newer by 9 year(s). Which means there will be less support and parts availability for 1997 Alfa Romeo Spider. In addition, the cost of maintenance, including insurance, on 1997 Alfa Romeo Spider would be higher. At 4,398 cc (8 cylinders), 2006 BMW 645 is equipped with a bigger engine. In terms of performance, 2006 BMW 645 (328 HP @ 6100 RPM) has 184 more horse power than 1997 Alfa Romeo Spider. (144 HP @ 6500 RPM) In normal driving conditions, 2006 BMW 645 should accelerate faster than 1997 Alfa Romeo Spider. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 465 kg more than 1997 Alfa Romeo Spider. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 BMW 645 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 645. However, in wet, icy, snow, or gravel driving conditions, 1997 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, 2006 BMW 645 (450 Nm @ 3600 RPM) has 281 more torque (in Nm) than 1997 Alfa Romeo Spider. (169 Nm @ 3500 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1997 Alfa Romeo Spider.
Compare all specifications:
| 1997 Alfa Romeo Spider | 2006 BMW 645 | |
| Make | Alfa Romeo | BMW |
| Model | Spider | 645 |
| Year Released | 1997 | 2006 |
| Body Type | Roadster | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1747 cc | 4398 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 144 HP | 328 HP |
| Engine RPM | 6500 RPM | 6100 RPM |
| Torque | 169 Nm | 450 Nm |
| Torque RPM | 3500 RPM | 3600 RPM |
| Engine Compression Ratio | 10.3:1 | 10.0:1 |
| Top Speed | 200 km/hour | 250 km/hour |
| Acceleration 0-100mph | 9.3 seconds | 6.4 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1350 kg | 1815 kg |
| Vehicle Length | 4290 mm | 4830 mm |
| Vehicle Width | 1790 mm | 1860 mm |
| Vehicle Height | 1320 mm | 1380 mm |
| Wheelbase Size | 2550 mm | 2790 mm |
| Fuel Tank Capacity | 70 L | 70 L |
