1998 Alfa Romeo 166 vs. 2006 Audi A4
To start off, 2006 Audi A4 is newer by 8 year(s). Which means there will be less support and parts availability for 1998 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 1998 Alfa Romeo 166 would be higher. At 3,129 cc (6 cylinders), 2006 Audi A4 is equipped with a bigger engine. In terms of performance, 2006 Audi A4 (255 HP @ 6500 RPM) has 119 more horse power than 1998 Alfa Romeo 166. (136 HP @ 4000 RPM) In normal driving conditions, 2006 Audi A4 should accelerate faster than 1998 Alfa Romeo 166. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A4 weights approximately 390 kg more than 1998 Alfa Romeo 166. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1998 Alfa Romeo 166. In wet, icy, snow, or gravel driving conditions, 2006 Audi A4 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, 2006 Audi A4 (330 Nm @ 3250 RPM) has 26 more torque (in Nm) than 1998 Alfa Romeo 166. (304 Nm @ 2000 RPM). This means 2006 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1998 Alfa Romeo 166.
Compare all specifications:
| 1998 Alfa Romeo 166 | 2006 Audi A4 | |
| Make | Alfa Romeo | Audi |
| Model | 166 | A4 |
| Year Released | 1998 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2387 cc | 3129 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 136 HP | 255 HP |
| Engine RPM | 4000 RPM | 6500 RPM |
| Torque | 304 Nm | 330 Nm |
| Torque RPM | 2000 RPM | 3250 RPM |
| Engine Bore Size | 82.1 mm | 84.5 mm |
| Engine Stroke Size | 90.4 mm | 92.8 mm |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1490 kg | 1880 kg |
| Vehicle Length | 4730 mm | 4590 mm |
| Vehicle Width | 1820 mm | 1780 mm |
| Vehicle Height | 1420 mm | 1430 mm |
| Wheelbase Size | 2600 mm | 2660 mm |
| Fuel Tank Capacity | 72 L | 63 L |
