1958 AC Ace vs. 1951 Allard J1
To start off, 1958 AC Ace is newer by 7 year(s). Which means there will be less support and parts availability for 1951 Allard J1. In addition, the cost of maintenance, including insurance, on 1951 Allard J1 would be higher. At 3,917 cc (8 cylinders), 1951 Allard J1 is equipped with a bigger engine. In terms of performance, 1951 Allard J1 (100 HP @ 3800 RPM) has 26 more horse power than 1958 AC Ace. (74 HP @ 4500 RPM) In normal driving conditions, 1951 Allard J1 should accelerate faster than 1958 AC Ace. With that said, vehicle weight also plays an important factor in acceleration. 1951 Allard J1 weights approximately 256 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, 1951 Allard J1 (305 Nm) has 138 more torque (in Nm) than 1958 AC Ace. (167 Nm). This means 1951 Allard J1 will have an easier job in driving up hills or pulling heavy equipment than 1958 AC Ace.
Compare all specifications:
| 1958 AC Ace | 1951 Allard J1 | |
| Make | AC | Allard |
| Model | Ace | J1 |
| Year Released | 1958 | 1951 |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 3917 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 74 HP | 100 HP |
| Engine RPM | 4500 RPM | 3800 RPM |
| Torque | 167 Nm | 305 Nm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 890 kg | 1146 kg |
| Vehicle Length | 3850 mm | 3690 mm |
| Vehicle Width | 1520 mm | 1480 mm |
| Vehicle Height | 1250 mm | 1510 mm |
| Wheelbase Size | 2290 mm | 2440 mm |
| Fuel Tank Capacity | 59 L | 113 L |
