2006 Audi A4 vs. 1987 Alfa Romeo 90
To start off, 2006 Audi A4 is newer by 19 year(s). Which means there will be less support and parts availability for 1987 Alfa Romeo 90. In addition, the cost of maintenance, including insurance, on 1987 Alfa Romeo 90 would be higher. At 2,391 cc (4 cylinders), 1987 Alfa Romeo 90 is equipped with a bigger engine. In terms of performance, 2006 Audi A4 (170 HP @ 5900 RPM) has 61 more horse power than 1987 Alfa Romeo 90. (109 HP @ 4200 RPM). In normal driving conditions, 2006 Audi A4 should accelerate faster than 1987 Alfa Romeo 90. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A4 weights approximately 400 kg more than 1987 Alfa Romeo 90. 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 1987 Alfa Romeo 90. 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, 1987 Alfa Romeo 90 (235 Nm @ 2300 RPM) has 9 more torque (in Nm) than 2006 Audi A4. (226 Nm @ 1950 RPM). This means 1987 Alfa Romeo 90 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A4.
Compare all specifications:
| 2006 Audi A4 | 1987 Alfa Romeo 90 | |
| Make | Audi | Alfa Romeo |
| Model | A4 | 90 |
| Year Released | 2006 | 1987 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1786 cc | 2391 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 170 HP | 109 HP |
| Engine RPM | 5900 RPM | 4200 RPM |
| Torque | 226 Nm | 235 Nm |
| Torque RPM | 1950 RPM | 2300 RPM |
| Engine Bore Size | 81 mm | 92 mm |
| Engine Stroke Size | 86.4 mm | 90 mm |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 226 km/hour | 178 km/hour |
| Drive Type | 4WD | Rear |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1650 kg | 1250 kg |
| Vehicle Length | 4580 mm | 4400 mm |
| Vehicle Width | 1780 mm | 1650 mm |
| Vehicle Height | 1400 mm | 1430 mm |
| Wheelbase Size | 2660 mm | 2520 mm |
| Fuel Tank Capacity | 70 L | 49 L |
