1953 Alfa Romeo AR 51 vs. 2009 Alpina B5
To start off, 2009 Alpina B5 is newer by 56 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 4,397 cc (8 cylinders), 2009 Alpina B5 is equipped with a bigger engine. In terms of performance, 2009 Alpina B5 (493 HP @ 5500 RPM) has 430 more horse power than 1953 Alfa Romeo AR 51. (63 HP @ 4400 RPM) In normal driving conditions, 2009 Alpina B5 should accelerate faster than 1953 Alfa Romeo AR 51. With that said, vehicle weight also plays an important factor in acceleration. 2009 Alpina B5 weights approximately 560 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.
Because 1953 Alfa Romeo AR 51 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Alpina B5. In wet, icy, snow, or gravel driving conditions, 1953 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. 2009 Alpina B5 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. 2009 Alpina B5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1953 Alfa Romeo AR 51 | 2009 Alpina B5 | |
| Make | Alfa Romeo | Alpina |
| Model | AR 51 | B5 |
| Year Released | 1953 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 1884 cc | 4397 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 63 HP | 493 HP |
| Engine RPM | 4400 RPM | 5500 RPM |
| Engine Bore Size | 82.6 mm | 92 mm |
| Engine Stroke Size | 88 mm | 82.7 mm |
| Engine Compression Ratio | 7.0:1 | 9.0:1 |
| Top Speed | 105 km/hour | 300 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1250 kg | 1810 kg |
| Vehicle Length | 3530 mm | 4850 mm |
| Vehicle Width | 1580 mm | 1850 mm |
| Vehicle Height | 1830 mm | 1500 mm |
| Wheelbase Size | 2210 mm | 2890 mm |
