1958 AC Ace vs. 1990 Jaguar XJR-15
To start off, 1990 Jaguar XJR-15 is newer by 32 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 5,993 cc (12 cylinders), 1990 Jaguar XJR-15 is equipped with a bigger engine. In terms of performance, 1990 Jaguar XJR-15 (450 HP @ 6250 RPM) has 325 more horse power than 1958 AC Ace. (125 HP @ 6000 RPM) In normal driving conditions, 1990 Jaguar XJR-15 should accelerate faster than 1958 AC Ace. With that said, vehicle weight also plays an important factor in acceleration. 1990 Jaguar XJR-15 weights approximately 156 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, 1990 Jaguar XJR-15 (569 Nm @ 4500 RPM) has 402 more torque (in Nm) than 1958 AC Ace. (167 Nm @ 4500 RPM). This means 1990 Jaguar XJR-15 will have an easier job in driving up hills or pulling heavy equipment than 1958 AC Ace.
Compare all specifications:
| 1958 AC Ace | 1990 Jaguar XJR-15 | |
| Make | AC | Jaguar |
| Model | Ace | XJR-15 |
| Year Released | 1958 | 1990 |
| Body Type | Roadster | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 1971 cc | 5993 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 125 HP | 450 HP |
| Engine RPM | 6000 RPM | 6250 RPM |
| Torque | 167 Nm | 569 Nm |
| Torque RPM | 4500 RPM | 4500 RPM |
| Engine Bore Size | 66 mm | 90.1 mm |
| Engine Stroke Size | 96 mm | 78.5 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 1 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 894 kg | 1050 kg |
| Vehicle Length | 4010 mm | 4810 mm |
| Vehicle Width | 1520 mm | 1910 mm |
| Vehicle Height | 1270 mm | 1110 mm |
| Wheelbase Size | 2290 mm | 2870 mm |
| Fuel Tank Capacity | 59 L | 90 L |
