2006 Audi TT vs. 1991 Porsche 928
To start off, 2006 Audi TT is newer by 15 year(s). Which means there will be less support and parts availability for 1991 Porsche 928. In addition, the cost of maintenance, including insurance, on 1991 Porsche 928 would be higher. At 4,663 cc (8 cylinders), 1991 Porsche 928 is equipped with a bigger engine. In terms of performance, 1991 Porsche 928 (306 HP @ 5900 RPM) has 59 more horse power than 2006 Audi TT. (247 HP @ 6300 RPM) In normal driving conditions, 1991 Porsche 928 should accelerate faster than 2006 Audi TT. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi TT weights approximately 138 kg more than 1991 Porsche 928.
Because 2006 Audi TT is four wheel drive (4WD), it will have significant more traction and grip than 1991 Porsche 928. In wet, icy, snow, or gravel driving conditions, 2006 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, 1991 Porsche 928 (408 Nm @ 4100 RPM) has 88 more torque (in Nm) than 2006 Audi TT. (320 Nm @ 2800 RPM). This means 1991 Porsche 928 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi TT.
Compare all specifications:
| 2006 Audi TT | 1991 Porsche 928 | |
| Make | Audi | Porsche |
| Model | TT | 928 |
| Year Released | 2006 | 1991 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3189 cc | 4663 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 247 HP | 306 HP |
| Engine RPM | 6300 RPM | 5900 RPM |
| Torque | 320 Nm | 408 Nm |
| Torque RPM | 2800 RPM | 4100 RPM |
| Engine Bore Size | 84 mm | 97 mm |
| Engine Stroke Size | 95.9 mm | 78.9 mm |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 250 km/hour | 319 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1668 kg | 1530 kg |
| Vehicle Length | 4050 mm | 4530 mm |
| Vehicle Width | 1770 mm | 2060 mm |
| Vehicle Height | 1350 mm | 1290 mm |
| Wheelbase Size | 2440 mm | 2510 mm |
| Fuel Tank Capacity | 62 L | 76 L |
