2004 Audi TT vs. 2005 BMW 645
To start off, 2005 BMW 645 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Audi TT. In addition, the cost of maintenance, including insurance, on 2004 Audi TT would be higher. At 4,392 cc (8 cylinders), 2005 BMW 645 is equipped with a bigger engine. In terms of performance, 2005 BMW 645 (326 HP @ 6100 RPM) has 178 more horse power than 2004 Audi TT. (148 HP @ 6300 RPM) In normal driving conditions, 2005 BMW 645 should accelerate faster than 2004 Audi TT. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 645 weights approximately 555 kg more than 2004 Audi TT. 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, 2004 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, 2005 BMW 645 (447 Nm @ 3600 RPM) has 252 more torque (in Nm) than 2004 Audi TT. (195 Nm @ 1750 RPM). This means 2005 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi TT. 2005 BMW 645 has automatic transmission and 2004 Audi TT has manual transmission. 2004 Audi TT will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 BMW 645 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Audi TT | 2005 BMW 645 | |
| Make | Audi | BMW |
| Model | TT | 645 |
| Year Released | 2004 | 2005 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1780 cc | 4392 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 148 HP | 326 HP |
| Engine RPM | 6300 RPM | 6100 RPM |
| Torque | 195 Nm | 447 Nm |
| Torque RPM | 1750 RPM | 3600 RPM |
| Engine Bore Size | 81 mm | 92 mm |
| Engine Stroke Size | 86.4 mm | 83 mm |
| Engine Compression Ratio | 10.0:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1340 kg | 1895 kg |
| Vehicle Length | 4010 mm | 4830 mm |
| Vehicle Width | 1760 mm | 1860 mm |
| Vehicle Height | 1350 mm | 1380 mm |
| Wheelbase Size | 2430 mm | 2890 mm |
