1990 Audi Coupe vs. 2006 BMW 645
To start off, 2006 BMW 645 is newer by 16 year(s). Which means there will be less support and parts availability for 1990 Audi Coupe. In addition, the cost of maintenance, including insurance, on 1990 Audi Coupe would be higher. At 4,398 cc (8 cylinders), 2006 BMW 645 is equipped with a bigger engine. In terms of performance, 2006 BMW 645 (328 HP @ 6100 RPM) has 111 more horse power than 1990 Audi Coupe. (217 HP @ 5900 RPM) In normal driving conditions, 2006 BMW 645 should accelerate faster than 1990 Audi Coupe. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 390 kg more than 1990 Audi Coupe. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1990 Audi Coupe is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW 645. In wet, icy, snow, or gravel driving conditions, 1990 Audi Coupe 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 BMW 645 (450 Nm @ 3600 RPM) has 135 more torque (in Nm) than 1990 Audi Coupe. (315 Nm @ 2100 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1990 Audi Coupe.
Compare all specifications:
| 1990 Audi Coupe | 2006 BMW 645 | |
| Make | Audi | BMW |
| Model | Coupe | 645 |
| Year Released | 1990 | 2006 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2226 cc | 4398 cc |
| Engine Cylinders | 5 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 217 HP | 328 HP |
| Engine RPM | 5900 RPM | 6100 RPM |
| Torque | 315 Nm | 450 Nm |
| Torque RPM | 2100 RPM | 3600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Doors | 3 doors | 2 doors |
| Vehicle Weight | 1420 kg | 1810 kg |
| Vehicle Length | 4370 mm | 4830 mm |
| Vehicle Width | 1720 mm | 1860 mm |
| Vehicle Height | 1380 mm | 1380 mm |
| Wheelbase Size | 2530 mm | 2790 mm |
| Fuel Tank Capacity | 80 L | 70 L |
