1952 Alfa Romeo AR 51 vs. 2013 BMW X5
To start off, 2013 BMW X5 is newer by 61 year(s). Which means there will be less support and parts availability for 1952 Alfa Romeo AR 51. In addition, the cost of maintenance, including insurance, on 1952 Alfa Romeo AR 51 would be higher. At 2,993 cc (6 cylinders), 2013 BMW X5 is equipped with a bigger engine. In terms of performance, 2013 BMW X5 (261 HP @ 4200 RPM) has 198 more horse power than 1952 Alfa Romeo AR 51. (63 HP @ 4400 RPM) In normal driving conditions, 2013 BMW X5 should accelerate faster than 1952 Alfa Romeo AR 51. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW X5 weights approximately 1105 kg more than 1952 Alfa Romeo AR 51. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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. 2013 BMW X5 has automatic transmission and 1952 Alfa Romeo AR 51 has manual transmission. 1952 Alfa Romeo AR 51 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2013 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1952 Alfa Romeo AR 51 | 2013 BMW X5 | |
| Make | Alfa Romeo | BMW |
| Model | AR 51 | X5 |
| Year Released | 1952 | 2013 |
| Engine Position | Front | Front |
| Engine Size | 1884 cc | 2993 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 63 HP | 261 HP |
| Engine RPM | 4400 RPM | 4200 RPM |
| Engine Bore Size | 82.6 mm | 84 mm |
| Engine Stroke Size | 88 mm | 90 mm |
| Engine Compression Ratio | 7.0:1 | 17 |
| Drive Type | 4WD | AWD |
| Transmission Type | Manual | 6-speed automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1250 kg | 2355 kg |
| Vehicle Length | 3530 mm | 4857 mm |
| Vehicle Width | 1580 mm | 2197 mm |
| Vehicle Height | 1830 mm | 1776 mm |
| Wheelbase Size | 2210 mm | 2933 mm |
| Fuel Tank Capacity | 77 L | 85 L |
