2009 Audi RS6 vs. 1974 Renault 15
To start off, 2009 Audi RS6 is newer by 35 year(s). Which means there will be less support and parts availability for 1974 Renault 15. In addition, the cost of maintenance, including insurance, on 1974 Renault 15 would be higher. At 4,991 cc (10 cylinders), 2009 Audi RS6 is equipped with a bigger engine. In terms of performance, 2009 Audi RS6 (572 HP @ 6250 RPM) has 513 more horse power than 1974 Renault 15. (59 HP @ 5500 RPM). In normal driving conditions, 2009 Audi RS6 should accelerate faster than 1974 Renault 15. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi RS6 weights approximately 1063 kg more than 1974 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, 2009 Audi RS6 (650 Nm @ 1500 RPM) has 552 more torque (in Nm) than 1974 Renault 15. (98 Nm @ 3500 RPM). This means 2009 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 1974 Renault 15.
Compare all specifications:
| 2009 Audi RS6 | 1974 Renault 15 | |
| Make | Audi | Renault |
| Model | RS6 | 15 |
| Year Released | 2009 | 1974 |
| Engine Position | Front | Front |
| Engine Size | 4991 cc | 1287 cc |
| Engine Cylinders | 10 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 572 HP | 59 HP |
| Engine RPM | 6250 RPM | 5500 RPM |
| Torque | 650 Nm | 98 Nm |
| Torque RPM | 1500 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 75 mm |
| Engine Stroke Size | 89 mm | 69 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 2028 kg | 965 kg |
| Vehicle Length | 4930 mm | 4270 mm |
| Vehicle Width | 1900 mm | 1640 mm |
| Vehicle Height | 1470 mm | 1310 mm |
| Wheelbase Size | 2850 mm | 2440 mm |
| Fuel Tank Capacity | 80 L | 55 L |
