1959 AC Greyhound vs. 2004 Opel Signum
To start off, 2004 Opel Signum is newer by 45 year(s). Which means there will be less support and parts availability for 1959 AC Greyhound. In addition, the cost of maintenance, including insurance, on 1959 AC Greyhound would be higher. At 2,553 cc (6 cylinders), 1959 AC Greyhound is equipped with a bigger engine. In terms of performance, 1959 AC Greyhound (168 HP @ 5500 RPM) has 20 more horse power than 2004 Opel Signum. (148 HP @ 4000 RPM). In normal driving conditions, 1959 AC Greyhound should accelerate faster than 2004 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Signum weights approximately 570 kg more than 1959 AC Greyhound.
Compare all specifications:
| 1959 AC Greyhound | 2004 Opel Signum | |
| Make | AC | Opel |
| Model | Greyhound | Signum |
| Year Released | 1959 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 2553 cc | 1908 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 168 HP | 148 HP |
| Engine RPM | 5500 RPM | 4000 RPM |
| Engine Bore Size | 82.6 mm | 82 mm |
| Engine Stroke Size | 79.5 mm | 90.4 mm |
| Fuel Type | Gasoline | Diesel |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1040 kg | 1610 kg |
| Vehicle Length | 4580 mm | 4640 mm |
| Vehicle Width | 1670 mm | 1800 mm |
| Vehicle Height | 1340 mm | 1470 mm |
| Wheelbase Size | 2550 mm | 2840 mm |
| Fuel Tank Capacity | 54 L | 60 L |
