1953 Alfa Romeo AR 51 vs. 2013 BMW X3
To start off, 2013 BMW X3 is newer by 60 year(s). Which means there will be less support and parts availability for 1953 Alfa Romeo AR 51. In addition, the cost of maintenance, including insurance, on 1953 Alfa Romeo AR 51 would be higher. At 1,997 cc (4 cylinders), 2013 BMW X3 is equipped with a bigger engine. In terms of performance, 2013 BMW X3 (237 HP @ 5000 RPM) has 174 more horse power than 1953 Alfa Romeo AR 51. (63 HP @ 4400 RPM) In normal driving conditions, 2013 BMW X3 should accelerate faster than 1953 Alfa Romeo AR 51. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW X3 weights approximately 615 kg more than 1953 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 X3 has automatic transmission and 1953 Alfa Romeo AR 51 has manual transmission. 1953 Alfa Romeo AR 51 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2013 BMW X3 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1953 Alfa Romeo AR 51 | 2013 BMW X3 | |
| Make | Alfa Romeo | BMW |
| Model | AR 51 | X3 |
| Year Released | 1953 | 2013 |
| Engine Position | Front | Front |
| Engine Size | 1884 cc | 1997 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 63 HP | 237 HP |
| Engine RPM | 4400 RPM | 5000 RPM |
| Engine Bore Size | 82.6 mm | 84 mm |
| Engine Stroke Size | 88 mm | 90 mm |
| Engine Compression Ratio | 7.0:1 | 10.0 :1 |
| Drive Type | 4WD | AWD |
| Transmission Type | Manual | 8-speed automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1250 kg | 1865 kg |
| Vehicle Length | 3530 mm | 4648 mm |
| Vehicle Width | 1580 mm | 2098 mm |
| Vehicle Height | 1830 mm | 1661 mm |
| Wheelbase Size | 2210 mm | 2810 mm |
