1991 Audi 100 vs. 2005 BMW 645
To start off, 2005 BMW 645 is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Audi 100. In addition, the cost of maintenance, including insurance, on 1991 Audi 100 would be higher. At 4,390 cc (8 cylinders), 2005 BMW 645 is equipped with a bigger engine. In terms of performance, 2005 BMW 645 (338 HP @ 6100 RPM) has 223 more horse power than 1991 Audi 100. (115 HP @ 4250 RPM) In normal driving conditions, 2005 BMW 645 should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 645 weights approximately 240 kg more than 1991 Audi 100. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 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 2005 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 1991 Audi 100, 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.
Compare all specifications:
| 1991 Audi 100 | 2005 BMW 645 | |
| Make | Audi | BMW |
| Model | 100 | 645 |
| Year Released | 1991 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 2460 cc | 4390 cc |
| Engine Cylinders | 5 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 115 HP | 338 HP |
| Engine RPM | 4250 RPM | 6100 RPM |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1475 kg | 1715 kg |
| Vehicle Length | 4800 mm | 4830 mm |
| Vehicle Width | 1780 mm | 1860 mm |
| Vehicle Height | 1450 mm | 1380 mm |
| Wheelbase Size | 2690 mm | 2790 mm |
