2001 Audi TT vs. 2003 BMW 645
To start off, 2003 BMW 645 is newer by 2 year(s). Which means there will be less support and parts availability for 2001 Audi TT. In addition, the cost of maintenance, including insurance, on 2001 Audi TT would be higher. At 4,398 cc (8 cylinders), 2003 BMW 645 is equipped with a bigger engine. In terms of performance, 2003 BMW 645 (310 HP @ 6000 RPM) has 90 more horse power than 2001 Audi TT. (220 HP @ 6500 RPM) In normal driving conditions, 2003 BMW 645 should accelerate faster than 2001 Audi TT. With that said, vehicle weight also plays an important factor in acceleration. 2001 Audi TT weights approximately 212 kg more than 2003 BMW 645.
Because 2001 Audi TT is four wheel drive (4WD), it will have significant more traction and grip than 2003 BMW 645. In wet, icy, snow, or gravel driving conditions, 2001 Audi TT 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, 2003 BMW 645 (450 Nm) has 165 more torque (in Nm) than 2001 Audi TT. (285 Nm). This means 2003 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2001 Audi TT. 2003 BMW 645 has automatic transmission and 2001 Audi TT has manual transmission. 2001 Audi TT will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 BMW 645 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2001 Audi TT | 2003 BMW 645 | |
| Make | Audi | BMW |
| Model | TT | 645 |
| Year Released | 2001 | 2003 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1780 cc | 4398 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 220 HP | 310 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 285 Nm | 450 Nm |
| Engine Bore Size | 81 mm | 92 mm |
| Engine Stroke Size | 86.4 mm | 82.7 mm |
| Engine Compression Ratio | 9.0:1 | 10.5:1 |
| Top Speed | 245 km/hour | 250 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1910 kg | 1698 kg |
| Vehicle Length | 4050 mm | 4830 mm |
| Vehicle Width | 1770 mm | 1860 mm |
| Vehicle Height | 1350 mm | 1380 mm |
| Wheelbase Size | 2430 mm | 2790 mm |
| Fuel Tank Capacity | 66 L | 70 L |
