2005 Audi S8 vs. 2006 BMW 645
To start off, 2006 BMW 645 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Audi S8. In addition, the cost of maintenance, including insurance, on 2005 Audi S8 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 81 more horse power than 2005 Audi S8. (247 HP @ 4000 RPM) In normal driving conditions, 2006 BMW 645 should accelerate faster than 2005 Audi S8. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 66 kg more than 2005 Audi S8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi S8 is all wheel drive (AWD), it will have significant more traction and grip than 2006 BMW 645. In wet, icy, snow, or gravel driving conditions, 2005 Audi S8 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, both vehicles can yield 450 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles. 2005 Audi S8 has automatic transmission and 2006 BMW 645 has manual transmission. 2006 BMW 645 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Audi S8 will be easier to drive especially in heavy traffic.
Compare all specifications:
2005 Audi S8 | 2006 BMW 645 | |
Make | Audi | BMW |
Model | S8 | 645 |
Year Released | 2005 | 2006 |
Body Type | Sedan | Convertible |
Engine Position | Front | Front |
Engine Size | 4172 cc | 4398 cc |
Engine Cylinders | 8 cylinders | 8 cylinders |
Engine Type | V | V |
Valves per Cylinder | 5 valves | 2 valves |
Horse Power | 247 HP | 328 HP |
Engine RPM | 4000 RPM | 6100 RPM |
Torque | 450 Nm | 450 Nm |
Torque RPM | 3400 RPM | 3600 RPM |
Drive Type | AWD | Rear |
Transmission Type | Automatic | Manual |
Number of Seats | 5 seats | 4 seats |
Number of Doors | 4 doors | 2 doors |
Vehicle Weight | 1770 kg | 1836 kg |
Wheelbase Size | 2290 mm | 2790 mm |
Fuel Tank Capacity | 90 L | 70 L |