2007 Audi S4 vs. 2009 Ascari KZ1
To start off, 2009 Ascari KZ1 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi S4. In addition, the cost of maintenance, including insurance, on 2007 Audi S4 would be higher. At 4,941 cc (8 cylinders), 2009 Ascari KZ1 is equipped with a bigger engine. In terms of performance, 2009 Ascari KZ1 (500 HP @ 7000 RPM) has 161 more horse power than 2007 Audi S4. (339 HP @ 7000 RPM) In normal driving conditions, 2009 Ascari KZ1 should accelerate faster than 2007 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi S4 weights approximately 372 kg more than 2009 Ascari KZ1.
Because 2007 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Ascari KZ1. In wet, icy, snow, or gravel driving conditions, 2007 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 Ascari KZ1 (550 Nm @ 4500 RPM) has 140 more torque (in Nm) than 2007 Audi S4. (410 Nm @ 3500 RPM). This means 2009 Ascari KZ1 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi S4.
Compare all specifications:
| 2007 Audi S4 | 2009 Ascari KZ1 | |
| Make | Audi | Ascari |
| Model | S4 | KZ1 |
| Year Released | 2007 | 2009 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 4163 cc | 4941 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 339 HP | 500 HP |
| Engine RPM | 7000 RPM | 7000 RPM |
| Torque | 410 Nm | 550 Nm |
| Torque RPM | 3500 RPM | 4500 RPM |
| Engine Bore Size | 84.5 mm | 94 mm |
| Engine Stroke Size | 92.8 mm | 89 mm |
| Engine Compression Ratio | 11.0:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 250 km/hour | 321 km/hour |
| Acceleration 0-100mph | 5.8 seconds | 3.7 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1722 kg | 1350 kg |
| Vehicle Length | 4590 mm | 4300 mm |
| Vehicle Width | 1730 mm | 1852 mm |
| Vehicle Height | 1430 mm | 1138 mm |
| Wheelbase Size | 2650 mm | 2636 mm |
