1999 Audi A4 vs. 1975 Austin 1800
To start off, 1999 Audi A4 is newer by 24 year(s). Which means there will be less support and parts availability for 1975 Austin 1800. In addition, the cost of maintenance, including insurance, on 1975 Austin 1800 would be higher. At 1,799 cc (4 cylinders), 1975 Austin 1800 is equipped with a bigger engine. In terms of performance, 1999 Audi A4 (123 HP @ 5800 RPM) has 37 more horse power than 1975 Austin 1800. (86 HP @ 5400 RPM). In normal driving conditions, 1999 Audi A4 should accelerate faster than 1975 Austin 1800. With that said, vehicle weight also plays an important factor in acceleration. 1999 Audi A4 weights approximately 200 kg more than 1975 Austin 1800. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1975 Austin 1800. In wet, icy, snow, or gravel driving conditions, 1999 Audi A4 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 A4 (168 Nm @ 3500 RPM) has 28 more torque (in Nm) than 1975 Austin 1800. (140 Nm @ 3000 RPM). This means 1999 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1975 Austin 1800.
Compare all specifications:
| 1999 Audi A4 | 1975 Austin 1800 | |
| Make | Audi | Austin |
| Model | A4 | 1800 |
| Year Released | 1999 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 1799 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 86 HP |
| Engine RPM | 5800 RPM | 5400 RPM |
| Torque | 168 Nm | 140 Nm |
| Torque RPM | 3500 RPM | 3000 RPM |
| Engine Bore Size | 81 mm | 80.3 mm |
| Engine Stroke Size | 86.4 mm | 88.9 mm |
| Engine Compression Ratio | 10.3:1 | 9.0:1 |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1390 kg | 1190 kg |
| Vehicle Length | 4480 mm | 4240 mm |
| Vehicle Width | 1740 mm | 1710 mm |
| Vehicle Height | 1420 mm | 1440 mm |
| Wheelbase Size | 2610 mm | 2700 mm |
| Fuel Tank Capacity | 60 L | 49 L |
