2007 Audi A4 vs. 2008 Audi R8
To start off, 2008 Audi R8 is newer by 1 year(s). Which means there will be less support and parts availability for 2007 Audi A4. In addition, the cost of maintenance, including insurance, on 2007 Audi A4 would be higher. At 4,163 cc (8 cylinders), 2008 Audi R8 is equipped with a bigger engine. In terms of performance, 2008 Audi R8 (420 HP @ 7800 RPM) has 259 more horse power than 2007 Audi A4. (161 HP @ 5700 RPM) In normal driving conditions, 2008 Audi R8 should accelerate faster than 2007 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 367 kg more than 2008 Audi R8.
Because 2008 Audi R8 is all wheel drive (AWD), it will have significant more traction and grip than 2007 Audi A4. In wet, icy, snow, or gravel driving conditions, 2008 Audi R8 will offer significantly more control. 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, 2008 Audi R8 (430 Nm @ 2500 RPM) has 205 more torque (in Nm) than 2007 Audi A4. (225 Nm @ 1950 RPM). This means 2008 Audi R8 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A4.
Compare all specifications:
| 2007 Audi A4 | 2008 Audi R8 | |
| Make | Audi | Audi |
| Model | A4 | R8 |
| Year Released | 2007 | 2008 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 1781 cc | 4163 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 161 HP | 420 HP |
| Engine RPM | 5700 RPM | 7800 RPM |
| Torque | 225 Nm | 430 Nm |
| Torque RPM | 1950 RPM | 2500 RPM |
| Engine Compression Ratio | 9.0:1 | 12.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 226 km/hour | 295 km/hour |
| Acceleration 0-100mph | 9.4 seconds | 4.6 seconds |
| Drive Type | Front | AWD |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1542 kg | 1175 kg |
| Vehicle Length | 4580 mm | 4440 mm |
| Vehicle Width | 1780 mm | 1910 mm |
| Vehicle Height | 1400 mm | 1260 mm |
| Wheelbase Size | 2660 mm | 2660 mm |
| Fuel Consumption Overall | 8.5 L/100km | 14.6 L/100km |
| Fuel Tank Capacity | 70 L | 75 L |
