1956 AC Ace vs. 2003 BMW 520
To start off, 2003 BMW 520 is newer by 47 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 2,171 cc (6 cylinders), 2003 BMW 520 is equipped with a bigger engine. In terms of performance, 2003 BMW 520 (167 HP @ 6100 RPM) has 44 more horse power than 1956 AC Ace. (123 HP @ 6000 RPM) In normal driving conditions, 2003 BMW 520 should accelerate faster than 1956 AC Ace. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 520 weights approximately 806 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, 2003 BMW 520 (210 Nm) has 43 more torque (in Nm) than 1956 AC Ace. (167 Nm). This means 2003 BMW 520 will have an easier job in driving up hills or pulling heavy equipment than 1956 AC Ace. 2003 BMW 520 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. 2003 BMW 520 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1956 AC Ace | 2003 BMW 520 | |
| Make | AC | BMW |
| Model | Ace | 520 |
| Year Released | 1956 | 2003 |
| Body Type | Roadster | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1971 cc | 2171 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 123 HP | 167 HP |
| Engine RPM | 6000 RPM | 6100 RPM |
| Torque | 167 Nm | 210 Nm |
| Engine Bore Size | 66 mm | 80 mm |
| Engine Stroke Size | 96 mm | 72 mm |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 894 kg | 1700 kg |
| Vehicle Length | 3850 mm | 4810 mm |
| Vehicle Width | 1520 mm | 1810 mm |
| Vehicle Height | 1250 mm | 1450 mm |
| Wheelbase Size | 2290 mm | 2730 mm |
| Fuel Tank Capacity | 59 L | 70 L |
