2005 Audi TT 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 TT. In addition, the cost of maintenance, including insurance, on 2005 Audi TT 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 148 more horse power than 2005 Audi TT. (180 HP @ 6300 RPM) In normal driving conditions, 2006 BMW 645 should accelerate faster than 2005 Audi TT. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 481 kg more than 2005 Audi TT. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 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 2006 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 2005 Audi TT, 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, 2006 BMW 645 (450 Nm) has 215 more torque (in Nm) than 2005 Audi TT. (235 Nm). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi TT.
Compare all specifications:
| 2005 Audi TT | 2006 BMW 645 | |
| Make | Audi | BMW |
| Model | TT | 645 |
| Year Released | 2005 | 2006 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1786 cc | 4398 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 180 HP | 328 HP |
| Engine RPM | 6300 RPM | 6100 RPM |
| Torque | 235 Nm | 450 Nm |
| Engine Compression Ratio | 9.5:1 | 10.0:1 |
| Drive Type | Front | Rear |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1355 kg | 1836 kg |
| Vehicle Length | 4050 mm | 4830 mm |
| Vehicle Width | 1860 mm | 1860 mm |
| Vehicle Height | 1350 mm | 1380 mm |
| Wheelbase Size | 2580 mm | 2790 mm |
| Fuel Consumption Overall | 9.8 L/100km | 12.8 L/100km |
| Fuel Tank Capacity | 55 L | 70 L |
