1956 AC Ace vs. 2007 BMW X5
To start off, 2007 BMW X5 is newer by 51 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 2,979 cc (6 cylinders), 2007 BMW X5 is equipped with a bigger engine. In terms of performance, 2007 BMW X5 (228 HP @ 5900 RPM) has 105 more horse power than 1956 AC Ace. (123 HP @ 6000 RPM) In normal driving conditions, 2007 BMW X5 should accelerate faster than 1956 AC Ace. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X5 weights approximately 1210 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, 2007 BMW X5 (300 Nm) has 133 more torque (in Nm) than 1956 AC Ace. (167 Nm). This means 2007 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1956 AC Ace. 2007 BMW X5 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. 2007 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1956 AC Ace | 2007 BMW X5 | |
| Make | AC | BMW |
| Model | Ace | X5 |
| Year Released | 1956 | 2007 |
| Body Type | Roadster | SUV |
| Engine Position | Front | Front |
| Engine Size | 1971 cc | 2979 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 123 HP | 228 HP |
| Engine RPM | 6000 RPM | 5900 RPM |
| Torque | 167 Nm | 300 Nm |
| Engine Bore Size | 66 mm | 84.1 mm |
| Engine Stroke Size | 96 mm | 89.6 mm |
| Fuel Type | Gasoline | Gasoline |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 894 kg | 2104 kg |
| Vehicle Length | 3850 mm | 4670 mm |
| Vehicle Width | 1520 mm | 1710 mm |
| Vehicle Height | 1250 mm | 1880 mm |
| Wheelbase Size | 2290 mm | 2830 mm |
| Fuel Tank Capacity | 59 L | 85 L |
