1958 AC Ace vs. 2009 BMW 520
To start off, 2009 BMW 520 is newer by 51 year(s). Which means there will be less support and parts availability for 1958 AC Ace. In addition, the cost of maintenance, including insurance, on 1958 AC Ace would be higher. At 1,995 cc (4 cylinders), 2009 BMW 520 is equipped with a bigger engine. In terms of performance, 2009 BMW 520 (175 HP @ 4000 RPM) has 50 more horse power than 1958 AC Ace. (125 HP @ 6000 RPM) In normal driving conditions, 2009 BMW 520 should accelerate faster than 1958 AC Ace. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 520 weights approximately 691 kg more than 1958 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, 2009 BMW 520 (350 Nm @ 1750 RPM) has 183 more torque (in Nm) than 1958 AC Ace. (167 Nm @ 4500 RPM). This means 2009 BMW 520 will have an easier job in driving up hills or pulling heavy equipment than 1958 AC Ace.
Compare all specifications:
| 1958 AC Ace | 2009 BMW 520 | |
| Make | AC | BMW |
| Model | Ace | 520 |
| Year Released | 1958 | 2009 |
| Body Type | Roadster | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1971 cc | 1995 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 125 HP | 175 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 167 Nm | 350 Nm |
| Torque RPM | 4500 RPM | 1750 RPM |
| Engine Compression Ratio | 9.0:1 | 16.0:1 |
| Fuel Type | Gasoline | Diesel |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 894 kg | 1585 kg |
| Vehicle Length | 4010 mm | 4850 mm |
| Vehicle Width | 1520 mm | 1850 mm |
| Vehicle Height | 1270 mm | 1470 mm |
| Wheelbase Size | 2290 mm | 2890 mm |
| Fuel Tank Capacity | 59 L | 70 L |
