1985 Alfa Romeo 90 vs. 2006 Audi RS4
To start off, 2006 Audi RS4 is newer by 21 year(s). Which means there will be less support and parts availability for 1985 Alfa Romeo 90. In addition, the cost of maintenance, including insurance, on 1985 Alfa Romeo 90 would be higher. At 4,163 cc (8 cylinders), 2006 Audi RS4 is equipped with a bigger engine. In terms of performance, 2006 Audi RS4 (414 HP @ 7800 RPM) has 305 more horse power than 1985 Alfa Romeo 90. (109 HP @ 4200 RPM) In normal driving conditions, 2006 Audi RS4 should accelerate faster than 1985 Alfa Romeo 90.
Because 2006 Audi RS4 is four wheel drive (4WD), it will have significant more traction and grip than 1985 Alfa Romeo 90. In wet, icy, snow, or gravel driving conditions, 2006 Audi RS4 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 RS4 (430 Nm @ 5500 RPM) has 184 more torque (in Nm) than 1985 Alfa Romeo 90. (246 Nm @ 2300 RPM). This means 2006 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 1985 Alfa Romeo 90.
Compare all specifications:
| 1985 Alfa Romeo 90 | 2006 Audi RS4 | |
| Make | Alfa Romeo | Audi |
| Model | 90 | RS4 |
| Year Released | 1985 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 4163 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 109 HP | 414 HP |
| Engine RPM | 4200 RPM | 7800 RPM |
| Torque | 246 Nm | 430 Nm |
| Torque RPM | 2300 RPM | 5500 RPM |
| Engine Bore Size | 92 mm | 84.5 mm |
| Engine Stroke Size | 90 mm | 92.8 mm |
| Engine Compression Ratio | 22.0:1 | 12.5:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 178 km/hour | 250 km/hour |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4400 mm | 4600 mm |
| Vehicle Width | 1650 mm | 1820 mm |
| Vehicle Height | 1430 mm | 1420 mm |
| Wheelbase Size | 2460 mm | 2650 mm |
| Fuel Consumption Overall | 5.4 L/100km | 13.4 L/100km |
| Fuel Tank Capacity | 49 L | 63 L |
