2006 Jaguar XJ8 vs. 1979 Renault 15
To start off, 2006 Jaguar XJ8 is newer by 27 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), 2006 Jaguar XJ8 is equipped with a bigger engine. In terms of performance, 2006 Jaguar XJ8 (300 HP @ 6000 RPM) has 241 more horse power than 1979 Renault 15. (59 HP @ 5500 RPM). In normal driving conditions, 2006 Jaguar XJ8 should accelerate faster than 1979 Renault 15. With that said, vehicle weight also plays an important factor in acceleration. 2006 Jaguar XJ8 weights approximately 745 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, 2006 Jaguar XJ8 (420 Nm @ 4100 RPM) has 322 more torque (in Nm) than 1979 Renault 15. (98 Nm @ 3500 RPM). This means 2006 Jaguar XJ8 will have an easier job in driving up hills or pulling heavy equipment than 1979 Renault 15.
Compare all specifications:
| 2006 Jaguar XJ8 | 1979 Renault 15 | |
| Make | Jaguar | Renault |
| Model | XJ8 | 15 |
| Year Released | 2006 | 1979 |
| Engine Position | Front | Front |
| Engine Size | 4195 cc | 1289 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 300 HP | 59 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 420 Nm | 98 Nm |
| Torque RPM | 4100 RPM | 3500 RPM |
| Engine Bore Size | 86 mm | 75 mm |
| Engine Stroke Size | 90.3 mm | 69 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1710 kg | 965 kg |
| Vehicle Length | 5220 mm | 4260 mm |
| Vehicle Width | 1950 mm | 1640 mm |
| Vehicle Height | 1460 mm | 1320 mm |
| Wheelbase Size | 3170 mm | 2440 mm |
| Fuel Tank Capacity | 85 L | 55 L |
