1999 Audi TT vs. 1998 Opel Astra
To start off, 1999 Audi TT is newer by 1 year(s). Which means there will be less support and parts availability for 1998 Opel Astra. In addition, the cost of maintenance, including insurance, on 1998 Opel Astra would be higher. At 1,998 cc (4 cylinders), 1998 Opel Astra is equipped with a bigger engine. In terms of performance, 1999 Audi TT (174 HP @ 5600 RPM) has 89 more horse power than 1998 Opel Astra. (85 HP @ 4400 RPM). In normal driving conditions, 1999 Audi TT should accelerate faster than 1998 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 1999 Audi TT weights approximately 30 kg more than 1998 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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 (230 Nm @ 1950 RPM) has 45 more torque (in Nm) than 1998 Opel Astra. (185 Nm @ 1800 RPM). This means 1999 Audi TT will have an easier job in driving up hills or pulling heavy equipment than 1998 Opel Astra.
Compare all specifications:
| 1999 Audi TT | 1998 Opel Astra | |
| Make | Audi | Opel |
| Model | TT | Astra |
| Year Released | 1999 | 1998 |
| Engine Position | Front | Front |
| Engine Size | 1779 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 174 HP | 85 HP |
| Engine RPM | 5600 RPM | 4400 RPM |
| Torque | 230 Nm | 185 Nm |
| Torque RPM | 1950 RPM | 1800 RPM |
| Engine Bore Size | 81 mm | 84 mm |
| Engine Stroke Size | 86.4 mm | 90 mm |
| Engine Compression Ratio | 10.3:1 | 6.0:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1310 kg | 1280 kg |
| Vehicle Length | 4010 mm | 4300 mm |
| Vehicle Width | 1760 mm | 1720 mm |
| Vehicle Height | 1350 mm | 1470 mm |
| Wheelbase Size | 2430 mm | 2620 mm |
