1954 Alfa Romeo AR 51 vs. 2009 Mercedes-Benz SL
To start off, 2009 Mercedes-Benz SL is newer by 55 year(s). Which means there will be less support and parts availability for 1954 Alfa Romeo AR 51. In addition, the cost of maintenance, including insurance, on 1954 Alfa Romeo AR 51 would be higher. At 5,980 cc (12 cylinders), 2009 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz SL (605 HP) has 542 more horse power than 1954 Alfa Romeo AR 51. (63 HP) In normal driving conditions, 2009 Mercedes-Benz SL should accelerate faster than 1954 Alfa Romeo AR 51. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz SL weights approximately 1580 kg more than 1954 Alfa Romeo AR 51. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1954 Alfa Romeo AR 51 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Mercedes-Benz SL. In wet, icy, snow, or gravel driving conditions, 1954 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.
Compare all specifications:
| 1954 Alfa Romeo AR 51 | 2009 Mercedes-Benz SL | |
| Make | Alfa Romeo | Mercedes-Benz |
| Model | AR 51 | SL |
| Year Released | 1954 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 1884 cc | 5980 cc |
| Engine Cylinders | 4 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 3 valves |
| Horse Power | 63 HP | 605 HP |
| Engine Bore Size | 82.6 mm | 82.6 mm |
| Engine Stroke Size | 88 mm | 93 mm |
| Engine Compression Ratio | 7.0:1 | 9.0:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1250 kg | 2830 kg |
| Vehicle Length | 3530 mm | 4540 mm |
| Vehicle Width | 1580 mm | 1820 mm |
| Vehicle Height | 1830 mm | 1300 mm |
| Wheelbase Size | 2210 mm | 2570 mm |
