1958 AC Ace vs. 1997 Caterham C21
To start off, 1997 Caterham C21 is newer by 39 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 1,991 cc (6 cylinders), 1958 AC Ace is equipped with a bigger engine. In terms of performance, 1997 Caterham C21 (115 HP @ 6000 RPM) has 41 more horse power than 1958 AC Ace. (74 HP @ 4500 RPM) In normal driving conditions, 1997 Caterham C21 should accelerate faster than 1958 AC Ace. With that said, vehicle weight also plays an important factor in acceleration. 1958 AC Ace weights approximately 240 kg more than 1997 Caterham C21.
Let's talk about torque, 1958 AC Ace (167 Nm) has 22 more torque (in Nm) than 1997 Caterham C21. (145 Nm). This means 1958 AC Ace will have an easier job in driving up hills or pulling heavy equipment than 1997 Caterham C21.
Compare all specifications:
| 1958 AC Ace | 1997 Caterham C21 | |
| Make | AC | Caterham |
| Model | Ace | C21 |
| Year Released | 1958 | 1997 |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 1587 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 74 HP | 115 HP |
| Engine RPM | 4500 RPM | 6000 RPM |
| Torque | 167 Nm | 145 Nm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 890 kg | 650 kg |
| Vehicle Length | 3850 mm | 3810 mm |
| Vehicle Width | 1520 mm | 1590 mm |
| Vehicle Height | 1250 mm | 1060 mm |
| Wheelbase Size | 2290 mm | 2260 mm |
