1956 AC Ace vs. 2011 Mazda CX-9
To start off, 2011 Mazda CX-9 is newer by 55 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 3,700 cc (6 cylinders), 2011 Mazda CX-9 is equipped with a bigger engine. In terms of performance, 2011 Mazda CX-9 (273 HP @ 6250 RPM) has 150 more horse power than 1956 AC Ace. (123 HP @ 6000 RPM) In normal driving conditions, 2011 Mazda CX-9 should accelerate faster than 1956 AC Ace. With that said, vehicle weight also plays an important factor in acceleration. 2011 Mazda CX-9 weights approximately 1070 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, 2011 Mazda CX-9 (366 Nm) has 199 more torque (in Nm) than 1956 AC Ace. (167 Nm). This means 2011 Mazda CX-9 will have an easier job in driving up hills or pulling heavy equipment than 1956 AC Ace. 2011 Mazda CX-9 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. 2011 Mazda CX-9 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1956 AC Ace | 2011 Mazda CX-9 | |
| Make | AC | Mazda |
| Model | Ace | CX-9 |
| Year Released | 1956 | 2011 |
| Body Type | Roadster | SUV |
| Engine Position | Front | Front |
| Engine Size | 1971 cc | 3700 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 123 HP | 273 HP |
| Engine RPM | 6000 RPM | 6250 RPM |
| Torque | 167 Nm | 366 Nm |
| Fuel Type | Gasoline | Gasoline |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 7 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 894 kg | 1964 kg |
| Vehicle Length | 3850 mm | 5085 mm |
| Vehicle Width | 1520 mm | 1935 mm |
| Vehicle Height | 1250 mm | 1727 mm |
| Wheelbase Size | 2290 mm | 2875 mm |
| Fuel Tank Capacity | 59 L | 76 L |
