1991 Alfa Romeo Proteo vs. 2005 Audi A8
To start off, 2005 Audi A8 is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Alfa Romeo Proteo. In addition, the cost of maintenance, including insurance, on 1991 Alfa Romeo Proteo would be higher. At 4,178 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (335 HP @ 4000 RPM) has 79 more horse power than 1991 Alfa Romeo Proteo. (256 HP @ 7200 RPM) In normal driving conditions, 2005 Audi A8 should accelerate faster than 1991 Alfa Romeo Proteo. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 475 kg more than 1991 Alfa Romeo Proteo. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Compare all specifications:
| 1991 Alfa Romeo Proteo | 2005 Audi A8 | |
| Make | Alfa Romeo | Audi |
| Model | Proteo | A8 |
| Year Released | 1991 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 2959 cc | 4178 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 256 HP | 335 HP |
| Engine RPM | 7200 RPM | 4000 RPM |
| Engine Bore Size | 93.1 mm | 85 mm |
| Engine Stroke Size | 72.6 mm | 93 mm |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1470 kg | 1945 kg |
| Vehicle Length | 4150 mm | 5060 mm |
