1957 AC Ace vs. 1951 Humber Pullman
To start off, 1957 AC Ace is newer by 6 year(s). Which means there will be less support and parts availability for 1951 Humber Pullman. In addition, the cost of maintenance, including insurance, on 1951 Humber Pullman would be higher. At 4,085 cc (6 cylinders), 1951 Humber Pullman is equipped with a bigger engine. In terms of performance, 1957 AC Ace (123 HP @ 6000 RPM) has 23 more horse power than 1951 Humber Pullman. (100 HP @ 3400 RPM). In normal driving conditions, 1957 AC Ace should accelerate faster than 1951 Humber Pullman. With that said, vehicle weight also plays an important factor in acceleration. 1951 Humber Pullman weights approximately 1138 kg more than 1957 AC Ace.
Compare all specifications:
| 1957 AC Ace | 1951 Humber Pullman | |
| Make | AC | Humber |
| Model | Ace | Pullman |
| Year Released | 1957 | 1951 |
| Engine Position | Front | Front |
| Engine Size | 1971 cc | 4085 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 100 HP |
| Engine RPM | 6000 RPM | 3400 RPM |
| Engine Compression Ratio | 9.0:1 | 6.3:1 |
| Number of Seats | 2 seats | 8 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 894 kg | 2032 kg |
| Vehicle Length | 3850 mm | 5390 mm |
| Vehicle Width | 1520 mm | 1910 mm |
| Wheelbase Size | 2290 mm | 3330 mm |
