1956 AC Ace vs. 2008 Opel Signum
To start off, 2008 Opel Signum is newer by 52 year(s). Which means there will be less support and parts availability for 1956 AC Ace. In addition, the cost of maintenance, including insurance, on 1956 AC Ace would be higher. At 2,957 cc (6 cylinders), 2008 Opel Signum is equipped with a bigger engine. In terms of performance, 2008 Opel Signum (175 HP @ 4000 RPM) has 52 more horse power than 1956 AC Ace. (123 HP @ 6000 RPM) In normal driving conditions, 2008 Opel Signum should accelerate faster than 1956 AC Ace. With that said, vehicle weight also plays an important factor in acceleration. 2008 Opel Signum weights approximately 776 kg more than 1956 AC Ace. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2008 Opel Signum (370 Nm) has 203 more torque (in Nm) than 1956 AC Ace. (167 Nm). This means 2008 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1956 AC Ace. 2008 Opel Signum has automatic transmission and 1956 AC Ace has manual transmission. 1956 AC Ace will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Opel Signum will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1956 AC Ace | 2008 Opel Signum | |
| Make | AC | Opel |
| Model | Ace | Signum |
| Year Released | 1956 | 2008 |
| Body Type | Roadster | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1971 cc | 2957 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 | 6000 RPM | 4000 RPM |
| Torque | 167 Nm | 370 Nm |
| Engine Bore Size | 66 mm | 87.5 mm |
| Engine Stroke Size | 96 mm | 82 mm |
| Fuel Type | Gasoline | Diesel |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 894 kg | 1670 kg |
| Vehicle Length | 3850 mm | 4640 mm |
| Vehicle Width | 1520 mm | 1800 mm |
| Vehicle Height | 1250 mm | 1470 mm |
| Wheelbase Size | 2290 mm | 2840 mm |
| Fuel Tank Capacity | 59 L | 60 L |
