2005 Jaguar XJ vs. 1979 Renault 15
To start off, 2005 Jaguar XJ is newer by 26 year(s). Which means there will be less support and parts availability for 1979 Renault 15. In addition, the cost of maintenance, including insurance, on 1979 Renault 15 would be higher. At 4,195 cc (8 cylinders), 2005 Jaguar XJ is equipped with a bigger engine. In terms of performance, 2005 Jaguar XJ (390 HP @ 6000 RPM) has 331 more horse power than 1979 Renault 15. (59 HP @ 5500 RPM). In normal driving conditions, 2005 Jaguar XJ should accelerate faster than 1979 Renault 15. With that said, vehicle weight also plays an important factor in acceleration. 2005 Jaguar XJ weights approximately 770 kg more than 1979 Renault 15. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Jaguar XJ (525 Nm) has 427 more torque (in Nm) than 1979 Renault 15. (98 Nm). This means 2005 Jaguar XJ will have an easier job in driving up hills or pulling heavy equipment than 1979 Renault 15.
Compare all specifications:
| 2005 Jaguar XJ | 1979 Renault 15 | |
| Make | Jaguar | Renault |
| Model | XJ | 15 |
| Year Released | 2005 | 1979 |
| Engine Position | Front | Front |
| Engine Size | 4195 cc | 1289 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 390 HP | 59 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 525 Nm | 98 Nm |
| Engine Bore Size | 86.1 mm | 75 mm |
| Engine Stroke Size | 90 mm | 69 mm |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1735 kg | 965 kg |
| Vehicle Length | 5100 mm | 4260 mm |
| Vehicle Width | 1950 mm | 1640 mm |
| Vehicle Height | 1450 mm | 1320 mm |
| Wheelbase Size | 2920 mm | 2440 mm |
| Fuel Tank Capacity | 84 L | 55 L |
