1953 Alfa Romeo AR 51 vs. 2005 Cadillac STS
To start off, 2005 Cadillac STS 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 3,562 cc (6 cylinders), 2005 Cadillac STS is equipped with a bigger engine. In terms of performance, 2005 Cadillac STS (252 HP @ 6500 RPM) has 189 more horse power than 1953 Alfa Romeo AR 51. (63 HP @ 4400 RPM) In normal driving conditions, 2005 Cadillac STS should accelerate faster than 1953 Alfa Romeo AR 51. With that said, vehicle weight also plays an important factor in acceleration. 2005 Cadillac STS weights approximately 540 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 2005 Cadillac STS. 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. 2005 Cadillac STS 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. 2005 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1953 Alfa Romeo AR 51 | 2005 Cadillac STS | |
| Make | Alfa Romeo | Cadillac |
| Model | AR 51 | STS |
| Year Released | 1953 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1884 cc | 3562 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 63 HP | 252 HP |
| Engine RPM | 4400 RPM | 6500 RPM |
| Engine Bore Size | 82.6 mm | 94 mm |
| Engine Stroke Size | 88 mm | 86 mm |
| Engine Compression Ratio | 7.0:1 | 10.2:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1250 kg | 1790 kg |
| Vehicle Length | 3530 mm | 4990 mm |
| Vehicle Width | 1580 mm | 1850 mm |
| Vehicle Height | 1830 mm | 1470 mm |
| Wheelbase Size | 2210 mm | 2690 mm |
