1957 AC Ace vs. 1999 BMW Z9
To start off, 1999 BMW Z9 is newer by 42 year(s). Which means there will be less support and parts availability for 1957 AC Ace. In addition, the cost of maintenance, including insurance, on 1957 AC Ace would be higher. At 4,397 cc (8 cylinders), 1999 BMW Z9 is equipped with a bigger engine. In terms of performance, 1999 BMW Z9 (242 HP @ 7400 RPM) has 168 more horse power than 1957 AC Ace. (74 HP @ 4500 RPM) In normal driving conditions, 1999 BMW Z9 should accelerate faster than 1957 AC Ace. With that said, vehicle weight also plays an important factor in acceleration. 1999 BMW Z9 weights approximately 740 kg more than 1957 AC Ace. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Compare all specifications:
| 1957 AC Ace | 1999 BMW Z9 | |
| Make | AC | BMW |
| Model | Ace | Z9 |
| Year Released | 1957 | 1999 |
| Body Type | Roadster | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1990 cc | 4397 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 74 HP | 242 HP |
| Engine RPM | 4500 RPM | 7400 RPM |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 890 kg | 1630 kg |
| Vehicle Length | 3850 mm | 5010 mm |
| Vehicle Width | 1520 mm | 1980 mm |
| Vehicle Height | 1250 mm | 1350 mm |
| Wheelbase Size | 2290 mm | 3060 mm |
