1953 Alfa Romeo AR 51 vs. 2005 Audi A4
To start off, 2005 Audi A4 is newer by 52 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 2,983 cc (6 cylinders), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (220 HP @ 6500 RPM) has 157 more horse power than 1953 Alfa Romeo AR 51. (63 HP @ 4400 RPM) In normal driving conditions, 2005 Audi A4 should accelerate faster than 1953 Alfa Romeo AR 51. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 570 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.
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.
Compare all specifications:
| 1953 Alfa Romeo AR 51 | 2005 Audi A4 | |
| Make | Alfa Romeo | Audi |
| Model | AR 51 | A4 |
| Year Released | 1953 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1884 cc | 2983 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 63 HP | 220 HP |
| Engine RPM | 4400 RPM | 6500 RPM |
| Engine Bore Size | 82.6 mm | 83 mm |
| Engine Stroke Size | 88 mm | 93 mm |
| Engine Compression Ratio | 7.0:1 | 10.1:1 |
| Drive Type | 4WD | 4WD |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1250 kg | 1820 kg |
| Vehicle Length | 3530 mm | 4580 mm |
| Vehicle Width | 1580 mm | 1780 mm |
| Vehicle Height | 1830 mm | 1400 mm |
| Wheelbase Size | 2210 mm | 2580 mm |
