1984 Alfa Romeo 33 vs. 2006 BMW 645
To start off, 2006 BMW 645 is newer by 22 year(s). Which means there will be less support and parts availability for 1984 Alfa Romeo 33. In addition, the cost of maintenance, including insurance, on 1984 Alfa Romeo 33 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 235 more horse power than 1984 Alfa Romeo 33. (93 HP @ 5750 RPM) In normal driving conditions, 2006 BMW 645 should accelerate faster than 1984 Alfa Romeo 33. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 921 kg more than 1984 Alfa Romeo 33. 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, 1984 Alfa Romeo 33, 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 320 more torque (in Nm) than 1984 Alfa Romeo 33. (130 Nm @ 4000 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1984 Alfa Romeo 33.
Compare all specifications:
| 1984 Alfa Romeo 33 | 2006 BMW 645 | |
| Make | Alfa Romeo | BMW |
| Model | 33 | 645 |
| Year Released | 1984 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 1490 cc | 4398 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | boxer | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 93 HP | 328 HP |
| Engine RPM | 5750 RPM | 6100 RPM |
| Torque | 130 Nm | 450 Nm |
| Torque RPM | 4000 RPM | 3600 RPM |
| Engine Bore Size | 84.1 mm | 92 mm |
| Engine Stroke Size | 67.2 mm | 83 mm |
| Engine Compression Ratio | 9.0:1 | 10.0:1 |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 915 kg | 1836 kg |
| Vehicle Length | 4150 mm | 4830 mm |
| Vehicle Width | 1620 mm | 1860 mm |
| Vehicle Height | 1350 mm | 1380 mm |
| Wheelbase Size | 2410 mm | 2790 mm |
| Fuel Tank Capacity | 50 L | 70 L |
