1958 AC Ace vs. 2008 BMW X5
To start off, 2008 BMW X5 is newer by 50 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 2,979 cc (6 cylinders), 2008 BMW X5 is equipped with a bigger engine. In terms of performance, 2008 BMW X5 (228 HP @ 5900 RPM) has 103 more horse power than 1958 AC Ace. (125 HP @ 6000 RPM) In normal driving conditions, 2008 BMW X5 should accelerate faster than 1958 AC Ace. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW X5 weights approximately 1176 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, 2008 BMW X5 (300 Nm @ 3500 RPM) has 133 more torque (in Nm) than 1958 AC Ace. (167 Nm @ 4500 RPM). This means 2008 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1958 AC Ace.
Compare all specifications:
| 1958 AC Ace | 2008 BMW X5 | |
| Make | AC | BMW |
| Model | Ace | X5 |
| Year Released | 1958 | 2008 |
| 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 | 125 HP | 228 HP |
| Engine RPM | 6000 RPM | 5900 RPM |
| Torque | 167 Nm | 300 Nm |
| Torque RPM | 4500 RPM | 3500 RPM |
| Engine Bore Size | 66 mm | 84.1 mm |
| Engine Stroke Size | 96 mm | 89.6 mm |
| Engine Compression Ratio | 9.0:1 | 10.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 894 kg | 2070 kg |
| Vehicle Length | 4010 mm | 4670 mm |
| Vehicle Width | 1520 mm | 1880 mm |
| Vehicle Height | 1270 mm | 1720 mm |
| Wheelbase Size | 2290 mm | 2830 mm |
| Fuel Tank Capacity | 59 L | 93 L |
