1999 GMC Sierra vs. 1968 Jaguar XJ-13
To start off, 1999 GMC Sierra is newer by 31 year(s). Which means there will be less support and parts availability for 1968 Jaguar XJ-13. In addition, the cost of maintenance, including insurance, on 1968 Jaguar XJ-13 would be higher. At 4,990 cc (12 cylinders), 1968 Jaguar XJ-13 is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 1999 GMC Sierra weights approximately 680 kg more than 1968 Jaguar XJ-13.
Let's talk about torque, 1968 Jaguar XJ-13 (570 Nm @ 6300 RPM) has 184 more torque (in Nm) than 1999 GMC Sierra. (386 Nm @ 4000 RPM). This means 1968 Jaguar XJ-13 will have an easier job in driving up hills or pulling heavy equipment than 1999 GMC Sierra.
Compare all specifications:
| 1999 GMC Sierra | 1968 Jaguar XJ-13 | |
| Make | GMC | Jaguar |
| Model | Sierra | XJ-13 |
| Year Released | 1999 | 1968 |
| Engine Position | Front | Front |
| Engine Size | 4784 cc | 4990 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Horse Power | 267 HP | 0 HP |
| Torque | 386 Nm | 570 Nm |
| Torque RPM | 4000 RPM | 6300 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1805 kg | 1125 kg |
| Vehicle Length | 5170 mm | 4840 mm |
| Vehicle Width | 2000 mm | 1780 mm |
| Vehicle Height | 1810 mm | 1000 mm |
