1958 AC Ace vs. 2006 BMW 645
To start off, 2006 BMW 645 is newer by 48 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 4,398 cc (8 cylinders), 2006 BMW 645 is equipped with a bigger engine. In terms of performance, 2006 BMW 645 (328 HP @ 6100 RPM) has 254 more horse power than 1958 AC Ace. (74 HP @ 4500 RPM) In normal driving conditions, 2006 BMW 645 should accelerate faster than 1958 AC Ace. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 920 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, 2006 BMW 645 (450 Nm) has 283 more torque (in Nm) than 1958 AC Ace. (167 Nm). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1958 AC Ace.
Compare all specifications:
| 1958 AC Ace | 2006 BMW 645 | |
| Make | AC | BMW |
| Model | Ace | 645 |
| Year Released | 1958 | 2006 |
| Body Type | Roadster | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 4398 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 74 HP | 328 HP |
| Engine RPM | 4500 RPM | 6100 RPM |
| Torque | 167 Nm | 450 Nm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 890 kg | 1810 kg |
| Vehicle Length | 3850 mm | 4830 mm |
| Vehicle Width | 1520 mm | 1860 mm |
| Vehicle Height | 1250 mm | 1380 mm |
| Wheelbase Size | 2290 mm | 2790 mm |
| Fuel Tank Capacity | 59 L | 70 L |
