1991 Alfa Romeo Proteo vs. 2009 BMW X5
To start off, 2009 BMW X5 is newer by 18 year(s). Which means there will be less support and parts availability for 1991 Alfa Romeo Proteo. In addition, the cost of maintenance, including insurance, on 1991 Alfa Romeo Proteo would be higher. At 2,996 cc (6 cylinders), 2009 BMW X5 is equipped with a bigger engine. In terms of performance, 2009 BMW X5 (268 HP @ 6650 RPM) has 12 more horse power than 1991 Alfa Romeo Proteo. (256 HP @ 7200 RPM) In normal driving conditions, 2009 BMW X5 should accelerate faster than 1991 Alfa Romeo Proteo. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW X5 weights approximately 660 kg more than 1991 Alfa Romeo Proteo. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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. 2009 BMW X5 has automatic transmission and 1991 Alfa Romeo Proteo has manual transmission. 1991 Alfa Romeo Proteo will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Alfa Romeo Proteo | 2009 BMW X5 | |
| Make | Alfa Romeo | BMW |
| Model | Proteo | X5 |
| Year Released | 1991 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2959 cc | 2996 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 256 HP | 268 HP |
| Engine RPM | 7200 RPM | 6650 RPM |
| Engine Bore Size | 93.1 mm | 85 mm |
| Engine Stroke Size | 72.6 mm | 88 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1470 kg | 2130 kg |
| Vehicle Length | 4150 mm | 4860 mm |
