2007 Audi A4 vs. 1998 BMW 845
To start off, 2007 Audi A4 is newer by 9 year(s). Which means there will be less support and parts availability for 1998 BMW 845. In addition, the cost of maintenance, including insurance, on 1998 BMW 845 would be higher. At 4,398 cc (8 cylinders), 1998 BMW 845 is equipped with a bigger engine. In terms of performance, 1998 BMW 845 (282 HP @ 5700 RPM) has 121 more horse power than 2007 Audi A4. (161 HP @ 5700 RPM) In normal driving conditions, 1998 BMW 845 should accelerate faster than 2007 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 1998 BMW 845 weights approximately 280 kg more than 2007 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1998 BMW 845. In wet, icy, snow, or gravel driving conditions, 2007 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, 1998 BMW 845 (420 Nm @ 3900 RPM) has 195 more torque (in Nm) than 2007 Audi A4. (225 Nm @ 1950 RPM). This means 1998 BMW 845 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A4.
Compare all specifications:
| 2007 Audi A4 | 1998 BMW 845 | |
| Make | Audi | BMW |
| Model | A4 | 845 |
| Year Released | 2007 | 1998 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1780 cc | 4398 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 161 HP | 282 HP |
| Engine RPM | 5700 RPM | 5700 RPM |
| Torque | 225 Nm | 420 Nm |
| Torque RPM | 1950 RPM | 3900 RPM |
| Engine Bore Size | 81 mm | 92 mm |
| Engine Stroke Size | 86.4 mm | 82.7 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1470 kg | 1750 kg |
| Vehicle Length | 4550 mm | 4790 mm |
| Vehicle Width | 1780 mm | 1860 mm |
| Vehicle Height | 1430 mm | 1350 mm |
| Wheelbase Size | 2650 mm | 2690 mm |
