1952 Alfa Romeo AR 51 vs. 2013 BMW 6 series
To start off, 2013 BMW 6 series 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 2,979 cc (6 cylinders), 2013 BMW 6 series is equipped with a bigger engine. In terms of performance, 2013 BMW 6 series (311 HP @ 6000 RPM) has 248 more horse power than 1952 Alfa Romeo AR 51. (63 HP @ 4400 RPM) In normal driving conditions, 2013 BMW 6 series should accelerate faster than 1952 Alfa Romeo AR 51. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 6 series weights approximately 565 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.
Because 1952 Alfa Romeo AR 51 is four wheel drive (4WD), it will have significant more traction and grip than 2013 BMW 6 series. In wet, icy, snow, or gravel driving conditions, 1952 Alfa Romeo AR 51 will offer significantly more control. 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 6 series 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 6 series will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1952 Alfa Romeo AR 51 | 2013 BMW 6 series | |
| Make | Alfa Romeo | BMW |
| Model | AR 51 | 6 series |
| Year Released | 1952 | 2013 |
| Engine Position | Front | Front |
| Engine Size | 1884 cc | 2979 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 63 HP | 311 HP |
| Engine RPM | 4400 RPM | 6000 RPM |
| Engine Bore Size | 82.6 mm | 84 mm |
| Engine Stroke Size | 88 mm | 89 mm |
| Engine Compression Ratio | 7.0:1 | 10.2 :1 |
| Top Speed | 105 km/hour | 250 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | 8-speed automatic |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1250 kg | 1815 kg |
| Vehicle Length | 3530 mm | 4897 mm |
| Vehicle Width | 1580 mm | 1895 mm |
| Vehicle Height | 1830 mm | 1369 mm |
| Wheelbase Size | 2210 mm | 2856 mm |
| Fuel Tank Capacity | 77 L | 70 L |
