1980 Audi 80 vs. 2004 BMW 645
To start off, 2004 BMW 645 is newer by 24 year(s). Which means there will be less support and parts availability for 1980 Audi 80. In addition, the cost of maintenance, including insurance, on 1980 Audi 80 would be higher. At 4,398 cc (8 cylinders), 2004 BMW 645 is equipped with a bigger engine. In terms of performance, 2004 BMW 645 (328 HP) has 269 more horse power than 1980 Audi 80. (59 HP) In normal driving conditions, 2004 BMW 645 should accelerate faster than 1980 Audi 80. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 645 weights approximately 865 kg more than 1980 Audi 80. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 BMW 645 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2004 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 1980 Audi 80, being front wheel drive (FWD), will offer much better control with better grip. 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, 2004 BMW 645 (451 Nm @ 3600 RPM) has 350 more torque (in Nm) than 1980 Audi 80. (101 Nm @ 3500 RPM). This means 2004 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1980 Audi 80.
Compare all specifications:
| 1980 Audi 80 | 2004 BMW 645 | |
| Make | Audi | BMW |
| Model | 80 | 645 |
| Year Released | 1980 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 1296 cc | 4398 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 59 HP | 328 HP |
| Torque | 101 Nm | 451 Nm |
| Torque RPM | 3500 RPM | 3600 RPM |
| Engine Bore Size | 75 mm | 92 mm |
| Engine Stroke Size | 73.4 mm | 82.7 mm |
| Top Speed | 150 km/hour | 250 km/hour |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 950 kg | 1815 kg |
| Vehicle Length | 4390 mm | 4830 mm |
| Vehicle Width | 1690 mm | 1860 mm |
| Vehicle Height | 1370 mm | 1380 mm |
| Wheelbase Size | 2550 mm | 2790 mm |
| Fuel Tank Capacity | 68 L | 70 L |
