1999 Audi TT vs. 1978 Audi 100
To start off, 1999 Audi TT is newer by 21 year(s). Which means there will be less support and parts availability for 1978 Audi 100. In addition, the cost of maintenance, including insurance, on 1978 Audi 100 would be higher. At 1,986 cc (5 cylinders), 1978 Audi 100 is equipped with a bigger engine. In terms of performance, 1999 Audi TT (175 HP @ 6500 RPM) has 105 more horse power than 1978 Audi 100. (70 HP @ 4800 RPM). In normal driving conditions, 1999 Audi TT should accelerate faster than 1978 Audi 100.
Because 1999 Audi TT is four wheel drive (4WD), it will have significant more traction and grip than 1978 Audi 100. In wet, icy, snow, or gravel driving conditions, 1999 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, 1999 Audi TT (237 Nm) has 112 more torque (in Nm) than 1978 Audi 100. (125 Nm). This means 1999 Audi TT will have an easier job in driving up hills or pulling heavy equipment than 1978 Audi 100.
Compare all specifications:
| 1999 Audi TT | 1978 Audi 100 | |
| Make | Audi | Audi |
| Model | TT | 100 |
| Year Released | 1999 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 1780 cc | 1986 cc |
| Engine Cylinders | 4 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 175 HP | 70 HP |
| Engine RPM | 6500 RPM | 4800 RPM |
| Torque | 237 Nm | 125 Nm |
| Engine Bore Size | 81.1 mm | 76.5 mm |
| Engine Stroke Size | 86.4 mm | 86.4 mm |
| Engine Compression Ratio | 9.5:1 | 23.0:1 |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Length | 4050 mm | 4690 mm |
| Vehicle Width | 1770 mm | 1770 mm |
| Vehicle Height | 1350 mm | 1400 mm |
| Wheelbase Size | 2430 mm | 2680 mm |
