2007 Audi R8 vs. 2005 Audi A4
To start off, 2007 Audi R8 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Audi A4. In addition, the cost of maintenance, including insurance, on 2005 Audi A4 would be higher. At 4,163 cc (8 cylinders), 2007 Audi R8 is equipped with a bigger engine. In terms of performance, 2007 Audi R8 (414 HP @ 7800 RPM) has 194 more horse power than 2005 Audi A4. (220 HP @ 6500 RPM). In normal driving conditions, 2007 Audi R8 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 255 kg more than 2007 Audi R8.
With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2007 Audi R8 (430 Nm) has 130 more torque (in Nm) than 2005 Audi A4. (300 Nm). This means 2007 Audi R8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2007 Audi R8 | 2005 Audi A4 | |
| Make | Audi | Audi |
| Model | R8 | A4 |
| Year Released | 2007 | 2005 |
| Body Type | Coupe | Convertible |
| Engine Position | Middle | Front |
| Engine Size | 4163 cc | 2983 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 414 HP | 220 HP |
| Engine RPM | 7800 RPM | 6500 RPM |
| Torque | 430 Nm | 300 Nm |
| Engine Bore Size | 84.5 mm | 83 mm |
| Engine Stroke Size | 92.8 mm | 93 mm |
| Engine Compression Ratio | 12.5:1 | 10.1:1 |
| Drive Type | AWD | 4WD |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1565 kg | 1820 kg |
| Vehicle Length | 4590 mm | 4580 mm |
| Vehicle Width | 1910 mm | 1780 mm |
| Vehicle Height | 1260 mm | 1400 mm |
| Wheelbase Size | 2660 mm | 2580 mm |
| Fuel Consumption Overall | 13.6 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 75 L | 66 L |
