1960 AC Greyhound vs. 2006 Opel Signum
To start off, 2006 Opel Signum is newer by 46 year(s). Which means there will be less support and parts availability for 1960 AC Greyhound. In addition, the cost of maintenance, including insurance, on 1960 AC Greyhound would be higher. At 2,958 cc (6 cylinders), 2006 Opel Signum is equipped with a bigger engine. In terms of performance, 2006 Opel Signum (175 HP @ 4000 RPM) has 52 more horse power than 1960 AC Greyhound. (123 HP @ 5750 RPM) In normal driving conditions, 2006 Opel Signum should accelerate faster than 1960 AC Greyhound. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Signum weights approximately 655 kg more than 1960 AC Greyhound. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Compare all specifications:
| 1960 AC Greyhound | 2006 Opel Signum | |
| Make | AC | Opel |
| Model | Greyhound | Signum |
| Year Released | 1960 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 1971 cc | 2958 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 123 HP | 175 HP |
| Engine RPM | 5750 RPM | 4000 RPM |
| Engine Bore Size | 66 mm | 87.5 mm |
| Engine Stroke Size | 96 mm | 82 mm |
| Fuel Type | Gasoline | Diesel |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1015 kg | 1670 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 |
