2009 Alfa Romeo 147 vs. 2009 Audi S4
To start off, both 2009 Alfa Romeo 147 and 2009 Audi S4 were released in the same year (2009). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,163 cc (8 cylinders), 2009 Audi S4 is equipped with a bigger engine. In terms of performance, 2009 Audi S4 (340 HP @ 7000 RPM) has 192 more horse power than 2009 Alfa Romeo 147. (148 HP @ 6300 RPM) In normal driving conditions, 2009 Audi S4 should accelerate faster than 2009 Alfa Romeo 147. With that said, vehicle weight also plays an important factor in acceleration. 2009 Alfa Romeo 147 weights approximately 395 kg more than 2009 Audi S4.
Because 2009 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Alfa Romeo 147. In wet, icy, snow, or gravel driving conditions, 2009 Audi S4 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, 2009 Audi S4 (410 Nm @ 3500 RPM) has 229 more torque (in Nm) than 2009 Alfa Romeo 147. (181 Nm @ 3800 RPM). This means 2009 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Alfa Romeo 147.
Compare all specifications:
| 2009 Alfa Romeo 147 | 2009 Audi S4 | |
| Make | Alfa Romeo | Audi |
| Model | 147 | S4 |
| Year Released | 2009 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 1970 cc | 4163 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 148 HP | 340 HP |
| Engine RPM | 6300 RPM | 7000 RPM |
| Torque | 181 Nm | 410 Nm |
| Torque RPM | 3800 RPM | 3500 RPM |
| Engine Bore Size | 83.1 mm | 84.6 mm |
| Engine Stroke Size | 91 mm | 92.8 mm |
| Engine Compression Ratio | 10.0:1 | 18.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1325 kg | 930 kg |
| Vehicle Length | 4230 mm | 4580 mm |
| Vehicle Width | 1740 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1400 mm |
| Wheelbase Size | 2550 mm | 2660 mm |
| Fuel Consumption Overall | 8.9 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 60 L | 63 L |
